Disclosed are a recovery method and recovery system for a ternary precursor mother liquor. The recovery method for a ternary precursor mother liquor provided in the present invention comprises the following steps: S1, reacting sulfide ions with a ternary precursor mother liquor, and then performing solid-liquid separation; S2, reacting an oxidant with liquid phase components obtained in step S1, and then performing solid-liquid separation; S3, treating, with quicklime, liquid phase components obtained in step S2, and collecting obtained gas; S4, performing, with sulfur dioxide, aeration treatment on a residual mixture in step S3, and then performing solid liquid separation; and S5, performing crystallization treatment on liquid phase components obtained in step S4. According to the recovery method for a ternary precursor mother liquor of the present invention, solutes in the ternary precursor mother liquor can be converted into products having high economic benefits; meanwhile, the treated ternary precursor mother liquor has few impurities, and high environmental protection benefits are achieved. The present invention further provides a recovery system for implementing the recovery method.
A preparation method for and the use of a hard carbon negative electrode material. The preparation method comprises the following steps: subjecting starch to first sintering, then crushing same, introducing air and nitrogen, and performing second sintering to obtain porous hard-block particles; and subjecting the porous hard-block particles to third sintering, continuously heating same, and performing fourth sintering to obtain the hard carbon negative electrode material. The prepared hard carbon negative electrode material has a reversible capacity of no less than 330 mAh/g, and an excellent cycling stability and excellent initial coulombic efficiency.
Disclosed are a ternary single crystal positive electrode material, a preparation method therefor and use thereof. The preparation method comprises the following steps: mixing a ternary polycrystalline micropowder, raising a temperature, carrying out a primary sintering, and lowering the temperature to obtain an intermediate; subjecting the intermediate to jet pulverization to obtain a single crystal material, washing the single crystal material with water, and centrifugally drying the single crystal material to obtain a material with a residual alkali content of less than 1500 ppm; and adding a coating agent to the material, raising a temperature, carrying out a secondary sintering, and lowering the temperature to obtain the ternary single crystal positive electrode material. In the present disclosure, by using a jet pulverization device to open a polycrystalline material to form small single crystal particles, the electrochemical performance and the energy density of the material is improved.
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p.ex. LiNiO2, LiCoO2 ou LiCoOxFy
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p.ex. LiMn2O4 ou LiMn2OxFy
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
4.
PREPARATION METHOD FOR SEA URCHIN-LIKE LITHIUM COBALTATE AND APPLICATION OF SEA URCHIN-LIKE LITHIUM COBALTATE
Disclosed in the present invention are a preparation method for sea urchin-like lithium cobaltate and an application of sea urchin-like lithium cobaltate. The method comprises: mixing a cobalt salt, ammonium fluoride, urea, an oxidant, and water to obtain a mixed solution; heating the mixed solution for a reaction; roasting the obtained solid in an oxygen-containing atmosphere; and roasting the roasted material and a lithium source to obtain lithium cobaltate. The lithium cobaltate prepared by the method forms a sea urchin-like porous structure, thereby increasing a contact area between an electrolyte and an electrode active material, increasing active sites for lithium ion deintercalation, greatly facilitating the infiltration and permeation of the electrolyte and the transport of lithium ions, and achieving good rate characteristics and cycling stability.
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p.ex. LiNiO2, LiCoO2 ou LiCoOxFy
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
5.
PREPARATION METHOD FOR TIN-BASED LITHIUM COBALT OXIDE PRECURSOR, AND APPLICATION OF PRECURSOR
Disclosed in the present invention are a preparation method for a tin-based lithium cobalt oxide precursor, and an application of the precursor. The preparation method comprises: adding a cobalt salt solution, a precipitant and a complexing agent for reaction to obtain a precipitate, wherein the precipitant is a mixed solution of carbonate and stannate; calcining the precipitate; mixing the calcined material with dioxane, and performing ball milling; and heating and pressurizing the ball-milled product to obtain the tin-based lithium cobalt oxide precursor. In the present invention, by mixing carbonate and stannate with a cobalt salt, a coprecipitate of cobalt carbonate and cobalt stannate is genereated; a mixture of cobaltosic oxide and tin dioxide is formed after calcination; the dioxane is used to perform solvent hot pressing, so that particles are linked with each other, and a grain boundary channel is formed, thereby improving the conductivity of a material while tin is doped.
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p.ex. LiNiO2, LiCoO2 ou LiCoOxFy
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
6.
MODIFIED LITHIUM ION BATTERY POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
54544 can be prevented from being in direct contact with water and carbon dioxide in the air, the "air sensitive effect" on the surface of the modified lithium ion positive electrode material is eliminated or mitigated, and the stability of the material in the air is improved.
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 4/485 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques d'oxydes ou d'hydroxydes mixtes pour insérer ou intercaler des métaux légers, p.ex. LiTi2O4 ou LiTi2OxFy
7.
LITHIUM ION BATTERY RECYCLING METHOD AND APPLICATION THEREOF
The present invention belongs to the technical field of battery recovery. Disclosed are a lithium ion battery recycling method and an application. The method comprises the following steps: mixing a waste lithium ion battery with waste NMP, and carrying out ultrasonic stirring and solid-liquid separation to obtain filter residues and a first filtrate; carrying out deorganization, salt washing and sorting on the filter residues to obtain battery powder; carrying out acid leaching on the battery powder to obtain a leaching solution and graphite slag, taking the leaching solution, adding an oxidizing agent to undergo a reaction, then adding a phosphate radical-containing iron removal agent to undergo a mixing reaction, adjusting the pH value, and carrying out solid-liquid separation to obtain iron phosphate and a second filtrate; and adding a phosphorus removal agent into the second filtrate to undergo a reaction, performing extraction and impurity removal, and carrying out a precipitation reaction to obtain a precursor. According to the method of the present invention, hydrogen is not generated in a recovery process, separation between a positive electrode material/negative electrode material and black powder can be achieved, iron is removed by using a phosphate radical, valuable metal is prevented from being carried by an iron colloid, and a metal recovery rate is improved.
Disclosed is an automatic production line for cascade utilization of power batteries, which is sequentially provided along the transmission direction of materials with: an appearance detection system, a screening device, a transport system, a residual energy detection device, a tab installation device and an assembling system, and in addition, is provided with a grouping device and a film sticking device, where the grouping device is located among the residual energy detection device, the tab installation device and a grouping station.
H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p.ex. le niveau ou la densité de l'électrolyte
H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
9.
LITHIUM-BATTERY POSITIVE-ELECTRODE MATERIAL, AND METHOD FOR PREPARING SAME
xyz22322, where x + y + z = 1, 0.80 ≤ x ≤ 0.95, 0 ≤ y ≤ 0.2, 0 ≤ z ≤ 0.2, 0 ≤ a ≤ 0.1, and 0 ＜ b ≤ 0.1. The initial coulombic efficiency of a battery made of the lithium-battery positive-electrode material can reach 93.3% or above, and the battery has a relatively high initial coulombic efficiency and good electrical properties.
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p.ex. LiNiO2, LiCoO2 ou LiCoOxFy
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p.ex. LiMn2O4 ou LiMn2OxFy
10.
NITROGEN-DOPED HOLLOW COBALTOSIC OXIDE, AND PREPARATION METHOD THEREFOR AND USE THEREOF
34344-COF-T-D@C-N. Further included is the use of the nitrogen-doped hollow cobaltosic oxide in the preparation of a lithium-ion battery, a capacitor, a magnetic material, a catalyst, a gas sensor, a colorant, or a pressure-sensitive ceramic material. The nitrogen-doped hollow cobaltosic oxide has a large specific surface area due to the presence of an open hollow structure, such that the contact area with an electrolyte is large, the transportation process of lithium ions therein is easier, and a volume effect is avoided during the charging and discharging process by means of the open hollow structure; and nitrogen is introduced for doping, such that particles can be gradually activated to increase the specific surface area and active sites, and the discharging (cycling) stability and rate performance of the material are improved.
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
12.
METHOD FOR RECYCLING BATTERY BY INCOMPLETE EXTRACTION
Disclosed is an incomplete extraction method for recycling batteries, which may include: introducing a pretreatment gas into a device loaded with a waste battery powder, and bringing a gas outlet into communication with absorption liquid A and absorption liquid B in order; raising the temperature and introducing the pretreatment gas; reducing the temperature and introducing a reaction gas; raising the temperature, introducing the reaction gas, and then introducing the pretreatment gas; and reducing the temperature, and turning off the pretreatment gas; adding an extractant to absorption liquid A, mixing the mixture, taking organic phase A, adding a stripping agent, and taking aqueous phase A; and adjusting the pH to acidity, then adding an extractant, taking organic phase B, adding a stripping agent to obtain a stock solution enriched in Li, Mn, Ni and Co.
C22B 3/38 - Traitement ou purification de solutions, p.ex. de solutions obtenues par lixiviation par extraction liquide-liquide utilisant des composés organiques contenant du phosphore
C22B 7/00 - Mise en œuvre de matériaux autres que des minerais, p.ex. des rognures, pour produire des métaux non ferreux ou leurs composés
Provided is a process for mineralization from evaporation and brine mixing of a calcium chloride-type lithium-containing salt lake brine, comprising the following steps: (1) carrying out natural evaporation on a calcium chloride-type lithium-containing salt lake brine to precipitate a sodium salt and a potassium-containing mixed salt; and (2) when calcium in the brine is saturated, adding a magnesium chloride saturated solution a certain proportion to perform a brine mixing operation, then carrying out natural evaporation to precipitate carnallite, and obtaining a lithium-containing tailing brine with low potassium and sodium content when magnesium in the brine is saturated. The process has the characteristics of being simple in process, easy in operation, high in potassium yield and easy in extraction of lithium from a lithium-containing brine, and has practical significance for the development and utilization of potassium and lithium resources in calcium chloride-type salt lakes.
The present application belongs to the technical field of battery materials, and discloses an aluminum-doped needle-like cobaltosic oxide and a preparation method therefor. The preparation method comprises the following steps: mixing a waste battery powder and an amino acid, adjusting the pH until an alkaline state is reached, and subjecting same to solid-liquid separation to obtain an aluminum-removed battery powder and a first filtrate; adding an acid to the aluminum-removed battery powder, mixing same, and subjecting same to solid-liquid separation to obtain a cobalt-containing acid solution and a copper-containing slag; adding, in a dropwise manner, a templating agent to the cobalt-containing acid solution, then adding an alkali to adjust the pH, centrifuging same, and subjecting same to a heat treatment to obtain an aluminum-doped needle-like cobaltosic oxide. In the present application, aluminum in waste batteries is effectively recovered by using an amino acid; when the templating agent is added and the pH is adjusted, a heat treatment is performed; and cobalt is wrapped by carbon, aluminum, etc. that are generated by the heat treatment, such that further agglomeration and the coupling of the templating agent and cobalt ions during an encapsulation process are mitigated, and a needle-like cobaltosic oxide with a good morphology is obtained.
H01M 10/54 - Récupération des parties utiles des accumulateurs usagés
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
C01B 32/05 - Préparation ou purification du carbone non couvertes par les groupes , , ,
95959595955@NC prepared by the present application has a high surface area and a unique bullet-like hollow nanostructure, and shows good performance in a high-performance sodium ion battery. The hollow nanostructure can effectively adapt to the volume expansion change in processes of sodium intercalation and sodium deintercalation; and the construction of the bullet-like nanostructure can expand the contact area between an electrode and an electrolyte, so as to improve the electrochemical kinetic performance.
Disclosed in the present invention are a method for preparing a ternary precursor from microbubbles by pre-oxidation and an application of the ternary precursor. The method comprises: adding a nickel-cobalt-manganese mixed salt solution, a precipitant, and a complexing agent to a base solution for reaction, the nickel-cobalt-manganese mixed salt solution and the precipitant being respectively added after reacting with oxygen by means of a microbubble generator; obtaining a solid material; and preparing the solid material into slurry, treating ozone and water by means of the microbubble generator, and then introducing into the slurry for reaction to obtain the ternary precursor. Compared with a strong oxidant, the prepared product of the present invention has few impurities and higher product purity, and the sintered positive electrode material has higher rate capability and cycling performance.
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p.ex. LiMn2O4 ou LiMn2OxFy
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p.ex. LiNiO2, LiCoO2 ou LiCoOxFy
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
17.
PLANT POMPON HARD CARBON COMPOSITE NEGATIVE ELECTRODE MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF
22322. The three-dimensional micron structure of the hard carbon composite negative electrode material has abundant pores, such that the specific surface area and conductivity of the hard carbon composite negative electrode material are improved; by introducing heteroatom materials such as N and O into the carbon of the hard carbon composite negative electrode material, the electrochemical performance thereof can also be improved; and since the electronic arrangement modes of N and C atoms are similar, C in a carbon framework is more easily substituted by the N atoms, such that the surface functional groups of the carbon material are changed so as to improve the electrochemical performance thereof, that is, the specific capacity and initial efficiency of the hard carbon composite negative electrode material are improved.
Disclosed in the present application is a sintering system capable of improving temperature uniformity. The sintering system comprises: a multi-layer and multi-column atmosphere furnace, a preheating unit with a two-stage structure, and lateral heating devices. In the sintering system, a two-stage preheating mode is used to heat a gas inputted into the atmosphere furnace, wherein the first-stage preheating not only plays a role in preheating, but can also cool materials to be discharged from the furnace, such that the gas consumption of the cooling section is saved on; and the second-stage preheating not only saves energy, but also improves the utilization rate of heat. The lateral heating devices can compensate for heat loss caused by heat transfer between the side and the outside, and solves the problem of insufficient heat at the side due to a high hearth, such that the uniformity and stability of the temperature in the hearth is improved. A ventilation mechanism can disperse intake air flow, such that the stability of the atmosphere is guaranteed, the uniformity of a temperature field can be greatly improved, and flying dust can also be avoided. By means of the two-stage preheating, the lateral heating devices and the ventilation mechanism on lateral air inlets, the uniformity of the internal temperature of the multi-layer and multi-column atmosphere furnace can be maintained, such that the product quality is improved.
F27B 9/12 - Fours dans lesquels la charge est déplacée mécaniquement, p.ex. du type tunnel; Fours similaires dans lesquels la charge se déplace par gravité avec dispositions particulières pour le préchauffage ou le refroidissement de la charge
19.
SILICON-ALUMINUM-IRON COMPOSITE MATERIAL, AND PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
The present application relates to the technical field of wastewater treatment, and discloses a silicon-aluminum-iron composite material, and a preparation method therefor and an application thereof. The silicon-aluminum-iron composite material comprises a core and a shell surrounding the core; the core is a silicon-aluminum-based hollow sphere; the shell comprises an iron element; holes are formed on the silicon-aluminum-iron composite material. According to the silicon-aluminum-iron composite material in the present application, the specific surface area of the silicon-aluminum-iron composite material is increased by means of structural adjustment; when the silicon-aluminum-iron composite material is used for adsorbing heavy metal ions, the adsorption sites are also correspondingly increased, and finally the adsorption capacity of the silicon-aluminum-iron composite material for heavy metal ions is improved.
B01J 20/10 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtration; Absorbants ou adsorbants pour la chromatographie; Procédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant de la silice ou un silicate
B01J 20/28 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtration; Absorbants ou adsorbants pour la chromatographie; Procédés pour leur préparation, régénération ou réactivation caractérisées par leur forme ou leurs propriétés physiques
B01J 20/30 - Procédés de préparation, de régénération ou de réactivation
C02F 1/28 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par absorption ou adsorption
20.
DOPED NICKEL-RICH TERNARY MATERIAL AND PREPARATION METHOD THEREOF
Disclosed are a doped nickel-rich ternary material and a preparation method thereof. The preparation method comprises the following steps: (1) Mixing a nickel source, a cobalt source, and a manganese source in a solvent to obtain a solution A, adding oxidant and doping elements to the solution A, and stirring to obtain solution B; (2) Adding a complexing agent and nitric acid to the solution B and stirring to obtain solution C; (3) Drying the solution C to obtain aerogel D; (4) Grinding the aerogel D, and subjecting it to low-temperature pre-calcinating, and heating the aerogel to perform first calcinating to obtain precursor powder E; (5) Mixing the precursor powder E with a lithium source to obtain a mixture, and subjecting the mixture to second calcinating, grinding, and screening to obtain the doped nickel-rich ternary material.
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p.ex. LiNiO2, LiCoO2 ou LiCoOxFy
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p.ex. LiMn2O4 ou LiMn2OxFy
21.
EXTRACTION METHOD FOR REMOVING ALUMINUM FROM TERNARY BATTERY MATERIAL LEACHATE
Disclosed is a method for removing aluminum in a ternary battery material leachate by adopting an extraction method, which comprises the following steps: (1) saponification: mixing an extraction solvent with a saponifying agent to obtain a saponified extraction solvent; (2) extraction: mixing the ternary battery material leachate with the saponified extraction solvent to obtain a loaded organic phase and a raffinate; (3) back extraction: mixing the loaded organic phase with a back-extraction agent, followed by performing a back-extraction to obtain an organic phase and a back-extraction solution; the extraction solvent comprises an extracting agent and a diluent. The extraction method is adopted to separate nickel, cobalt, manganese and aluminum, having the advantages of less heavy metal entrainment, short process flow, and high metal recovery rate. The extraction rate of the aluminum can reach 97.42 percent.
H01M 10/54 - Récupération des parties utiles des accumulateurs usagés
C22B 3/38 - Traitement ou purification de solutions, p.ex. de solutions obtenues par lixiviation par extraction liquide-liquide utilisant des composés organiques contenant du phosphore
The present application relates to the technical field of battery material recovery, and discloses a preparation method for a sodium ferrovanadium phosphate material and an application thereof. The preparation method comprises the following steps: crushing a lithium iron phosphate battery, adding an acid solution, reacting same, and carrying out solid-liquid separation to obtain a leaching solution and leaching residue; removing impurities from the leaching solution, adding an oxidizing agent, adjusting the concentrations of iron and phosphorus elements, and adjusting the pH value to be less than 1.5 to obtain a solution A; adding the solution A and a vanadium-containing solution to the acid solution, controlling the pH value to be 1.8-2.0, then adding an alkaline solution, adjusting the pH value to be 2.0-2.5, aging, and carrying out solid-liquid separation to obtain a precipitate and a filtrate; calcining the precipitate, then adding a sodium source, a phosphorus source and a carbon source, mixing, and sintering to obtain a product. According to the present application, a waste lithium iron phosphate battery is recycled, and a sodium ion battery positive electrode material is prepared, thus recycling resources in a battery, which is beneficial to environmental conservation.
The present application discloses a dealloyed sodium ion battery negative electrode material and a preparation method therefor. The sodium ion battery negative electrode material is composed of solid carbon particles and a nanoscale metal mesh coated on the surface of the solid carbon particles, or is composed of a nanoscale metal mesh and a carbon skeleton supporting at the interior of said mesh, the carbon skeleton being hollow or three-dimensional porous, and the composition of the nanoscale metal mesh being at least one of Sn, Pb, Bi, Ge, or Sb. The combination of the metal mesh and the carbon material can improve the strength and conductivity of the particles; in addition, the three-dimensional porous or hollow carbon skeleton structure can further increase the specific surface area of the material, which is more conducive to the deintercalation of sodium ions and can improve cyclic performance and specific capacity.
1-a-bab21-x-yxyyO and a porous structure. After silicon removal, lattice vacancies will occur in the inner core. When the precursor is sintered to prepare a positive electrode material, the stress change caused by charging and discharging can be effectively relieved, thus achieving the effect of suppressing micro-cracks and improving the cycling performance of the material.
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p.ex. LiMn2O4 ou LiMn2OxFy
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p.ex. LiNiO2, LiCoO2 ou LiCoOxFy
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
25.
METHOD FOR RECYCLING ELECTROLYTE OF LITHIUM-ION BATTERY
55 gas for reaction, and filtering to give an organic solution; and freezing the organic solution and filtering to give lithium hexafluorophosphate. By means of freezing the waste lithium-ion battery before disassembly, the present invention avoids contamination due to the volatilization and decomposition of the electrolyte. Lithium hexafluorophosphate prepared by the method disclosed herein features a high purity, thus meeting the requirement of Chinese regulation HG/T4066-2015 LITHIUM HEXAFLUOROPHOSPHATE.
The present application belongs to the technical field of energy storage materials, and discloses a preparation method for a polyanionic positive electrode material. The preparation method comprises: crushing a lithium iron phosphate battery, soaking in an acid solution, separating to obtain a leachate; then removing copper from the leachate, adjusting the contents of phosphorus, iron and aluminum; oxidizing, then adjusting the pH value to 1.8-2.8 for co-precipitation; and finally calcining the precipitate, soaking same in an alkaline solution to remove aluminum, then mixing and sintering with a sodium source and a carbon source, and preparing a polyanionic positive electrode material. In the described preparation method, by means of recycling waste lithium iron phosphate batteries, a polyanion positive electrode material is prepared. Said material can be applied to secondary sodium ion batteries, so that resources in waste batteries can be reused, which is beneficial to resource saving and environmental protection. The described method is beneficial to the intercalation of sodium ion and carbon, thereby improving the specific capacity and conductivity of the material.
Disclosed herein is a method for desorption of recycled active materials from a waste battery, comprising the following steps: reacting a positive and negative electrode current collector core of a waste battery with carbon tetrachloride and chlorine, and obtaining a remaining core, a carbon tetrachloride solution of aluminum chloride and a first positive electrode desorption powder; soaking the remaining core and the first positive electrode desorption powder in water, and obtaining a soaked core, a lithium salt solution and a second positive electrode desorption powder; and reacting the soaked core with nitric acid, and obtaining a copper nitrate solution and a negative electrode desorption powder. A waste lithium-ion battery only needs to be discharged and dismantled, and no crushing process is required, which helps to avoid the steps of crushing and sorting and reduces equipment investment. Moreover, positive and negative electrode materials can be effectively recycled, and the economic value of products is high.
The present disclosure belongs to the field of battery materials, and discloses a coated nickel-rich ternary material and a preparation method and application thereof. The coated nickel-rich ternary material has a chemical formula of LiNixCoyMnzO2·a[M3(PO4)2·bH2O], Where 0.6≤x≤0.8, 0.1≤y≤0.2, 0.1≤z≤0.2, x+y+z=1, 0.01≤a≤0.03, 3≤b≤8, M3(PO4)2·bH2O is at least one selected from the group consisting of nickel phosphate, cobalt phosphate and manganese phosphate; the coated nickel-rich ternary material has a flower-like structure. The preparation method of the present disclosure provides phosphate ions through the prepared phosphate solution, performs coating in a liquid phase environment, and synthesizes the precursor simultaneously by microwave hydrothermal synthesis, which is beneficial to the full contact between the phosphates and the precursor, and ensures the surface of the nickel-rich ternary precursor is uniformly coated with the phosphates. The method is simple and has good coating effect.
The present invention discloses a preparation method for a nickel phosphide@carbon negative electrode material having a porous structure, and the use thereof. The preparation method comprises: mixing a nickel salt solution with a precipitant for a reaction, and introducing carbon dioxide for a reaction to obtain a precipitate; placing the precipitate at a lower tuyere of a tubular furnace, taking anhydrous sodium hypophosphite and placing same at an upper tuyere of the tubular furnace, heating the tubular furnace, and taking out the precipitate and soaking same in a sodium hydroxide solution to obtain porous nickel phosphide; and mixing the porous nickel phosphide with organic matter for a carbonization reaction to obtain a nickel phosphide@carbon negative electrode material having a porous structure. The negative electrode material prepared in the present application has a porous structure; during charging and discharging, the porous structure therein can both buffer the volume change during the charging and discharging process and increase the contact area between an electrode and an electrolyte; and the negative electrode material has a high capacity, and good cycling performance and rate performance.
A magnetic separation device used for crushed battery powder, comprising a first conveyor belt assembly (1), a second conveyor belt assembly (2), and a third conveyor belt assembly (3). The first conveyor belt assembly (1) comprises a screen conveyor belt (11) and a plurality of electromagnets (12) arranged on the screen conveyor belt (11), the plurality of electromagnets (12) being arranged at intervals in the conveying direction of the screen conveyor belt (11), and screen holes (13) are formed in the screen conveyor belt (11). The second conveyor belt assembly (2) comprises a non-magnetic material conveyor belt (21), and the non-magnetic material conveyor belt (21) passes through the middle portion of the screen conveyor belt (11). The third conveyor belt assembly (3) comprises a magnetic material conveyor belt (31) arranged below the screen conveyor belt (11). Non-magnetic materials in the crushed battery powder fall onto the non-magnetic material conveyor belt (21) from the screen holes (13) in the screen conveyor belt (11), and the electromagnets (12) lose magnetization after magnetic materials are attracted and transmitted by the electromagnets (12) to the lower portion of the screen conveyor belt (11), so as to enable the magnetic materials to fall onto the magnetic material conveyor belt (31).
B03C 1/20 - Séparation magnétique agissant directement sur la substance à séparer ayant des supports pour le matériau traité en forme de bandes avec des aimants se déplaçant pendant l'opération en forme de bandes, p.ex. du type à bande transversale
31.
METHOD FOR TREATING WASTE DIAPHRAGM PAPER OF LITHIUM BATTERY
The present invention relates to the field of waste battery recycling, and discloses a method for treating waste diaphragm paper of a lithium battery, which includes the following steps of: (1) shearing and crushing waste diaphragm paper, and then carrying out pneumatic separation to obtain a light material and a copper-aluminum mixture; (2) putting the light material into a flotation machine for separation to obtain diaphragm paper and battery powder; and (3) pulping the battery powder, and then carrying out leaching of hydrometallurgy, pickling the diaphragm paper, and then filtering and spin-drying to obtain the diaphragm paper. According to the method, the diaphragm paper is treated by a method combining physics and chemistry, so that valuable metals in the waste diaphragm paper of the lithium battery are effectively recycled, and the industrial production requirements of environmental friendliness, low energy consumption and high resource recycling are satisfied.
H01M 50/403 - Procédés de fabrication des séparateurs, des membranes ou des diaphragmes
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
H01M 10/54 - Récupération des parties utiles des accumulateurs usagés
32.
LITHIUM ION BATTERY PRE-LITHIATION AGENT, PREPARATION METHOD THEREFOR, AND APPLICATION
5454544 primary particles. In the present application, a carbon source is mixed with a soluble salt of Fe, causing Fe ions to attach to the carbon source; after ammonia water is added, hydroxide having small particles and good dispersion can be formed, and then a nanoscale oxide is obtained by means of a solvothermal reaction, and the carbon source further achieves an obstruction effect between particles in a subsequent sintering process, primary particle growth is slowed, and large single crystal particles are prevented from growing. The pre-lithiation agent prepared using the present method has smaller primary particles, a shorter Li+deintercalation path during charging, and good rate capability. The pre-lithiation agent can provide enough Li+when charging a battery for the first time to cause an SEI film to be generated on a surface of a negative electrode, Li+ loss in a positive electrode material is reduced, and the Coulombic efficiency and capacity of a lithium ion battery are improved.
Disclosed are an aluminum-doped positive electrode material precursor, a method for preparing the same, and use thereof. The method comprises: adding a mixed solution of nickel, cobalt and calcium salts, a first aluminum-based alkali solution, ammonia water, and a sodium hydroxide solution to a base solution for reaction; performing solid-liquid separation to obtain a filter cake; soaking the filter cake in a second aluminum-based alkali solution; performing solid-liquid separation to obtain a solid material; calcining the solid material; and soaking the calcined material in water to obtain the aluminum-doped positive electrode material precursor. According to the present application, the precursor achieves the co-precipitation of nickel, cobalt, and aluminum. Under the action of subsequent dechlorination, calcium removal, and dehydration, a porous material having a low tap density is gradually formed, which facilitates the diffusion of a lithium source during the subsequent sintering process with the lithium source to prepare a positive electrode material.
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p.ex. LiNiO2, LiCoO2 ou LiCoOxFy
34.
METHOD FOR PREPARING NITROGEN-DOPED CARBON DOT-REDUCED GRAPHENE OXIDE COMPOSITE MATERIAL AND USE THEREOF
Disclosed are a method for preparing a nitrogen-doped carbon dot-graphene oxide composite material and use thereof. The method comprises the following steps: mixing a carbon source and a nitrogen source, performing a hydrothermal reaction, and performing solid-liquid separation to give a nitrogen-doped carbon dot solution; mixing graphene oxide and a reducing agent, stirring, performing solid-liquid separation, and dissolving the solid phase to give a pre-reduced graphene oxide solution; and mixing the nitrogen-doped carbon dot solution and the pre-reduced graphene oxide solution by sonication, dropwise adding the mixture on an electrode, and performing cyclic voltammetry for reduction to give the nitrogen-doped carbon dot-graphene oxide composite material.
G01N 27/26 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en utilisant l'électrolyse ou l'électrophorèse
35.
PREPARATION METHOD FOR HIGH-PURITY IRON PHOSPHATE AND USE THEREOF
The present application belongs to the technical field of battery materials. Disclosed are a preparation method for a high-purity iron phosphate and use thereof. The preparation method comprises the following steps: mixing and stirring an iron phosphide waste, an acid liquid, an oxidant, and an adsorbent, heating and leaching, and performing solid-liquid separation to give a first filtrate and a first filter residue; adding an alkali liquid to the first filtrate, adjusting the pH and preserving the heat, and performing solid-liquid separation to give a second filter residue and a second filtrate; performing heat treatment on the second filter residue to give iron oxide; performing high-energy ball milling on the iron oxide, and adding a surfactant for activation to give a slurry; and mixing the slurry with phosphoric acid, heating for reaction, performing solid-liquid separation, washing a solid phase, and then sintering to give iron phosphate. According to the present application, iron oxide and phosphoric acid are prepared from the iron phosphide waste and the like as raw materials. After activation, by means of a low-temperature reaction, the high-purity iron phosphate is prepared. The reaction process is closed-loop preparation, and less waste is produced.
H01M 4/58 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs de structures polyanioniques, p.ex. phosphates, silicates ou borates
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
36.
PREPARATION METHOD FOR SILICON-CARBON NEGATIVE ELECTRODE MATERIAL AND USE THEREOF
Disclosed in the present application are a preparation method for a silicon-carbon negative electrode material and the use thereof. The preparation method comprises: adding a metal salt solution into a sodium silicate solution for a reaction to obtain a silicate precipitate; calcining the silicate precipitate; placing the calcined material in a concentrated acid for heat soaking; and adding the resulting wet material into a graphene dispersion liquid, drying same by means of distillation, and heating the resulting dry material to obtain the silicon-carbon negative electrode material. In the present application, after metal ions are removed from the silicate, the resulting silicon dioxide has more atomic vacancies, such that the problem of the degradation of the cycling performance caused by volume expansion can be effectively relieved; and when the silicon dioxide is sintered with graphene, the silicon dioxide is deprived of oxygen atoms, and monatomic silicon having a higher specific capacity is formed, such that the specific capacity and cycling performance of the material are improved.
x1-x42444/C at room temperature at 0.1 C rate can reach 165 mAh/g; the retention rate of the discharge capacity of 1000 cycles at 45 °C at 1 C rate can reach 97.4%; and at a low temperature of -15 °C the specific discharge capacity at 0.1 C rate is still 134 mAh/g.
H01M 4/58 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs de structures polyanioniques, p.ex. phosphates, silicates ou borates
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
38.
VACUUM CRACKING METHOD AND CRACKING APPARATUS FOR POWER BATTERY
A vacuum cracking method and a cracking apparatus for a power battery are disclosed. The vacuum cracking method includes the following steps that: waste power batteries are fed from a feed hopper and then enter a rolling unit for rolling treatment to obtain a crushed material; the crushed material is transported to a cracking unit for preheating, then heated and cracked under an inert atmosphere or vacuum to obtain cracked gas, solid cracked products and non-crackable products; and the solid cracked products and the non-crackable products are transported to a pyrolysis unit for pyrolysis at an aerobic atmosphere to obtain pyrolysis gas and non-pyrolysis products.
B09B 3/40 - Destruction de déchets solides ou transformation de déchets solides en quelque chose d'utile ou d'inoffensif impliquant un traitement thermique, p.ex. évaporation
Disclosed is a method for purifying a nickel-cobalt-manganese leaching solution. The method may include: heating a nickel-cobalt-manganese leaching solution, adding a manganese powder thereto, adjusting the pH, reacting same, and filtering same to obtain iron-aluminum slag and a liquid with iron and aluminum removed therefrom; heating the liquid with iron and aluminum removed therefrom, adding a manganese powder thereto, adjusting the pH, reacting same, and filtering same to obtain copper slag and a solution with copper removed therefrom; heating the solution with copper removed therefrom, adding an alkaline solution thereto, adjusting the pH, reacting same, and filtering same to obtain a nickel-cobalt-precipitated solution and nickel-cobalt-manganese hydroxide; and adding water into nickel-cobalt-manganese hydroxide for slurrying, heating same, adding an acidic solution for dissolution, adjusting the pH, reacting same, heating same, adding a manganese powder thereto, adjusting the pH, and filtering same to obtain iron-aluminum slag and a nickel-cobalt-manganese sulfate solution.
23344 and NiO. The preparation method for the catalyst comprises the following steps: dissolving copper and aluminum slag, which is generated during a lithium ion battery recovery process, in an acid, then adding an alkali for a co-precipitation reaction, separating out obtained precipitates, and then roasting same to obtain a Cu-Al-Ni-Co-based catalyst. The catalyst has abundant alkaline sites and active sites, has a simple and environmentally friendly preparation, has good catalytic activity and stability, can further realize resource cyclic regeneration, value addition and comprehensive utilization of waste battery materials and carbon dioxide, and is suitable for practical popularization and use.
C07C 29/156 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par réduction exclusivement des oxydes de carbone avec de l'hydrogène ou des gaz contenant de l'hydrogène caractérisée par le catalyseur utilisé contenant des métaux du groupe du fer, des métaux du groupe du platine, ou leurs composés
41.
METHOD FOR REMOVING ALUMINUM FROM STRONG ALKALI SOLUTION AND APPLICATION THEREOF
A method for removing aluminum from a strong alkali solution. The method comprises: concentrating and filtering a strong alkali solution, taking a first concentrated solution, and adding an aluminum removing agent thereto to obtain a silicon slag and a filtrate; and concentrating and filtering the filtrate to obtain a metal hydroxide crystal and a second concentrated solution, wherein the aluminum removing agent comprises the following components: a silicate and silicon dioxide; and the strong alkali solution comprises aluminate ions. By using a silicate and silicon dioxide as the aluminum removing agent in the strong alkali solution, a water-insoluble aluminosilicate is generated from aluminum in the case that the original pH of the solution is not changed, and aluminum in the strong alkali solution is eliminated to a level of 30-100 ppm; moreover, corresponding sodium hydroxide, potassium hydroxide or lithium hydroxide crystals can be recovered, and mother liquor can be recycled.
The present application provides a preparation method for a positive electrode material precursor having a large channel, and an application thereof. The method comprises: mixing a sodium hexanitrocobaltate aqueous solution, a nickel-manganese mixed salt solution, an oxalic acid solution, and aqueous ammonia for reaction; calcining a solid material; and soaking the calcined material in water to obtain a positive electrode material precursor having a large channel. According to the present application, nickel-cobalt-manganese and sodium-ammonium are co-precipitated and sintered, and then sodium-ammonium is removed; and since the radius of sodium ions is greater than the radius of lithium ions, a large ion channel is left in a nickel-cobalt-manganese precursor framework, thereby facilitating the deintercalation of the lithium ions of a chemically sintered positive electrode material, widening a lithium ion diffusion channel, and remarkably improving the rate capability and the cycle performance of the material.
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p.ex. LiNiO2, LiCoO2 ou LiCoOxFy
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
43.
NICKEL-COBALT-MANGANESE TERNARY POSITIVE ELECTRODE MATERIAL NANOROD AND USE THEREOF
1-x-y-zxyz22, where 0 < x < 1, 0 < y < 1, and 0 ≤ z ≤ 0.05; and the nickel-cobalt-manganese ternary positive electrode material nanorod has a section diameter of 50-200 nm and a length of 0.1-5 μm. In the present application, a mixed metal salt solution of nickel, cobalt, manganese, aluminum and lithium and 8-hydroxyquinoline are subjected to complex-precipitation to generate a precipitate containing nickel, cobalt, manganese, aluminum and lithium, and then the precipitate is calcined to prepare a ternary positive electrode material nanorod. Unlike traditional processes, no ammonia-nitrogen wastewater is generated in the whole process, and an alcohol used in the process can be directly recovered by means of evaporation and condensation, such that the process is very environment-friendly.
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p.ex. LiMn2O4 ou LiMn2OxFy
44.
LITHIUM SALT METERING AND BATCHING SYSTEM, AND BATCHING METHOD
A lithium salt metering and batching system, and a batching method using the lithium salt metering and batching system. The lithium salt metering and batching system comprises: a material storage bin (100); a metering bin (200) connected below the material storage bin (100) by means of a feeding pipe (110), an excitation block (310) and at least two feeding valves (320) being provided on the feeding pipe (110); a coulter mixer (500), the coulter mixer (500) being connected below a discharge end of a metering helical device (400) by means of a discharge pipe (600), at least two discharge valves (610) and a lower flexible connector (620) being provided on the discharge pipe (600), and the lower flexible connector (620) being located between the two discharge valves (610); and a control module (700).
B01F 27/72 - Mélangeurs à agitateurs tournant dans des récipients fixes; Pétrins avec des agitateurs tournant autour d'un axe horizontal ou incliné avec des hélices ou des sections d'hélices
B01F 27/90 - Mélangeurs à agitateurs tournant dans des récipients fixes; Pétrins avec des agitateurs tournant autour d'un axe sensiblement vertical avec des palettes ou des bras
B01F 33/82 - Combinaisons de mélangeurs dissemblables
B01F 35/221 - Commande ou régulation des paramètres de fonctionnement, p.ex. du niveau de matière dans le mélangeur, de la température ou de la pression
The present invention discloses a method for power battery automatic fine-quantity sorting and an apparatus thereof, the method including the following steps of S1. The material is crushed, and leveled, and is then subjected to magnetic sorting processing to sort out iron powder; S2. The material after magnetic sorting is subjected to electrostatic processing to sort out positive electrode material powder; S3. The material after electrostatic processing is subjected to bounce processing to sort out the collector and graphite powder. A magnetic sorting device, an electrostatic sorting device, and a bouncing sorting device are accordingly provided.
B03C 7/08 - Séparateurs ayant des supports pour le matériau traité, en forme de bandes
B03B 9/06 - Disposition générale d'un atelier de séparation, p.ex. schéma opératoire spécialement adapté aux ordures
B03C 1/18 - Séparation magnétique agissant directement sur la substance à séparer ayant des supports pour le matériau traité en forme de bandes avec des aimants se déplaçant pendant l'opération
A compound inhibitor, a preparation method therefor, and a use thereof. The compound inhibitor comprises the following raw materials for preparation: a sulfite, a base, and hypochlorite. In a graphite flotation process, the compound inhibitor can effectively inhibit metal elements, such as nickel and cobalt, from entering a graphite concentrate, thereby reducing the content of metal elements in the graphite concentrate.
B03D 1/018 - Mélanges de composés inorganiques et organiques
B03C 1/015 - Prétraitement spécialement adapté à la séparation magnétique par traitement chimique communiquant des propriétés magnétiques au matériau à séparer, p.ex. grillage, réduction, oxydation
B03C 1/30 - Combinaisons avec d'autres dispositifs, non prévues ailleurs
Disclosed is a method for producing battery-grade nickel sulfate by using laterite nickel ore comprising the following steps: sorting the laterite nickel ore to obtain lump ore and sediment ore; crushing the lump ore, and then performing heap leaching, to obtain a crude nickel sulfate solution A; separating the sediment ore to obtain high chromium ore, low iron, high magnesium ore, and high iron, low magnesium ore, and drying, roasting, reducing, and sulfurating the low iron, high magnesium ore to obtain low nickel matte; blowing and performing water extraction on the low nickel matte, and then performing oxygen pressure leaching, to obtain a crude nickel sulfate solution B; performing pressure leaching on the high iron, low magnesium ore to obtain a crude nickel sulfate solution C; and performing extraction on the crude nickel sulfate solutions A, B, and C, and then evaporating and crystallizing, to obtain battery-grade nickel sulfate.
C22B 23/02 - Obtention du nickel ou du cobalt par voie sèche
C22B 3/00 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés
C22B 3/38 - Traitement ou purification de solutions, p.ex. de solutions obtenues par lixiviation par extraction liquide-liquide utilisant des composés organiques contenant du phosphore
The present invention relates to a method for recycling iron and aluminum in a nickel-cobalt-manganese solution. The method comprises the following steps: leaching a battery powder and removing copper therefrom to obtain a copper-removed solution, and adjusting the pH value in stages to remove iron and aluminum, so as to obtain a goethite slag and an iron-aluminum slag separately; mixing the iron-aluminum slag with an alkali liquor, and heating and stirring same to obtain an aluminum-containing solution and alkaline slag; and heating and stirring the aluminum-containing solution, introducing carbon dioxide thereto and controlling the pH value to obtain aluminum hydroxide and an aluminum-removed solution.
The invention discloses a vacuum cracking apparatus for a power battery and a cracking method thereof. The cracking device comprises a cylinder and further comprises a rolling device, a first sealing device, a cracking device, a second sealing device, a pyrolysis device and a third sealing device which are arranged from top to bottom. The cracking device for the power battery of the present invention is equipped with the first sealing device, the second sealing device and the third sealing device to isolate the cracking device from the pyrolysis device and be capable of realizing material transmission and gas isolation without interference with each other, so that gas stirring between an anaerobic zone and an aerobic zone is avoided; and by combing battery cracking and battery pyrolysis, with cracked gas discharged after cracking as a fuel for cracking and pyrolysis or preheating a pyrolysis device, resources are fully used.
B09B 3/40 - Destruction de déchets solides ou transformation de déchets solides en quelque chose d'utile ou d'inoffensif impliquant un traitement thermique, p.ex. évaporation
B02C 4/08 - Broyage ou désagrégation par broyeurs cylindriques par plusieurs meules coopérant avec des cylindres de broyage ondulés ou dentés
F23G 7/00 - Procédés ou appareils, p.ex. incinérateurs, spécialement adaptés à la combustion de déchets particuliers ou de combustibles pauvres, p.ex. des produits chimiques
F23G 5/033 - Procédés ou appareils, p.ex. incinérateurs, spécialement adaptés à la combustion de déchets ou de combustibles pauvres comportant un traitement préalable consistant en une désagrégation ou un broyage
F23G 5/027 - Procédés ou appareils, p.ex. incinérateurs, spécialement adaptés à la combustion de déchets ou de combustibles pauvres comportant un traitement préalable par pyrolyse ou par gazéification
F23G 5/44 - Procédés ou appareils, p.ex. incinérateurs, spécialement adaptés à la combustion de déchets ou de combustibles pauvres - Parties constitutives; Accessoires
Disclosed is a device for automatically dismantling a power battery module, including a cutting platform, a clamping mechanism, a first cutting mechanism, a second cutting mechanism, a turnover mechanism, and a stripping mechanism. The clamping mechanism is disposed on the cutting platform. The first cutting mechanism includes a first cutting blade, a cutting blade set, and a first drive assembly. The second cutting mechanism includes a third cutting blade, a fourth cutting blade, and a third drive assembly. The first cutting blade, the cutting blade set, the third cutting blade, and the fourth cutting blade are vertically movable. The cutting blade set includes a plurality of second cutting blades that are movable relative to each other.
H01M 6/00 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Éléments primaires; Leur fabrication
H01M 10/54 - Récupération des parties utiles des accumulateurs usagés
ff -stabb; R is at least one of zirconium, copper, nickel, cobalt, manganese, chromium, titanium, molybdenum, silver, magnesium, calcium, germanium, tin, and antimony; Z is at least one of aluminum, magnesium, and zinc; s and t each are independently 1, 2, 3, 4 or 5; a is equal to 1 or 2, and b is equal to 1 or 3. According to the silicon-carbon negative electrode material of the present application, because a boric acid polymer (BAP) is contained, the specific surface area and D50 of the silicon-carbon negative electrode material are better, and then the electrochemical properties are improved.
The present invention discloses a preparation method for and the use of a lithium silicate-based adsorbent. The method comprises: mixing and stirring butyl methacrylate, an acid and an organic solvent to obtain a first solution; adding lithium silicate, an initiator and N,N'-methylenebisacrylamide into the first solution, and heating and stirring same for a reaction to obtain a second solution; subjecting the second solution to low-temperature dehydration, cooling and drying to obtain a lithium silicate-based polymer; mixing the lithium silicate-based polymer with a third solution; and subjecting same to low-temperature carbonization under anoxic conditions, so as to obtain the lithium silicate-based adsorbent, wherein the third solution is obtained by mixing cotton fibers, tartaric acid, carboxymethylcellulose and water. The lithium silicate-based adsorbent material prepared in the present invention has the function of selectively adsorbing COD in wastewater, and the lithium silicate-based adsorbent material has a relatively large number of lithium sites, a weak adsorption response to lithium and a poor lithium adsorption capacity, such that the lithium silicate-based adsorbent material can selectively adsorb COD in wastewater and has a small interference with lithium in wastewater.
An electric conducting material and a preparation method therefor. The electric conducting material comprises: porous carbon particles, holes of which are filled with zirconium nanoparticles; and graphene, loaded with the porous carbon particles. According to the electric conducting material, by means of design of the material and structure, the conductivity of the electric conducting material can be remarkably improved.
H01M 4/62 - Emploi de substances spécifiées inactives comme ingrédients pour les masses actives, p.ex. liants, charges
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
H01B 1/04 - Conducteurs ou corps conducteurs caractérisés par les matériaux conducteurs utilisés; Emploi de matériaux spécifiés comme conducteurs composés principalement soit de compositions à base de carbone-silicium, soit de carbone soit de silicium
54.
HIGH-TEMPERATURE STABLE POSITIVE ELECTRODE MATERIAL, AND PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
The present invention relates to the technical field of batteries, and disclosed are a high-temperature stable positive electrode material, and a preparation method therefor and an application thereof. The positive electrode material comprises a lithium nickel cobalt manganese-based oxide, a composite oxide, and difluorophosphate; the composite oxide is coated on the surface of the lithium nickel cobalt manganese-based oxide; the difluorophosphate is coated on the surface of the composite oxide; the composite oxide comprises an oxygen element, and at least two metal elements of aluminum, titanium, zirconium, yttrium, tungsten, silicon, boron, magnesium, niobium, lanthanum, zinc, tin, calcium or bismuth. A battery prepared by using the positive electrode material has, under a high voltage, the advantages of being high in capacity, high in rate, good in high temperature cycle performance and stable in high temperature. The preparation method for the positive electrode material is simple and easy to achieve industrialization.
H01M 4/58 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs de structures polyanioniques, p.ex. phosphates, silicates ou borates
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p.ex. LiNiO2, LiCoO2 ou LiCoOxFy
55.
LITHIUM-ION BATTERY POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR, AND LITHIUM-ION BATTERY
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p.ex. LiNiO2, LiCoO2 ou LiCoOxFy
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
56.
FUNCTIONALIZED MODIFIED COATING AGENT, PREPARATION METHOD THEREFOR, AND USE THEREOF
xy(1-x-y)2abcabcc is a coating layer, and the coating layer is accompanied by an oxide; 0.3≤x≤1, y≥0, and 1-x-y≥0; M is selected from at least one of cobalt, cerium, nickel, manganese, aluminum, zirconium, strontium and yttrium; 00, b>0, and c>0; and the oxide comprises oxides of cobalt, cerium, nickel, manganese, aluminum, zirconium, strontium and yttrium. The functionalized modified coating agent is narrow in particle size distribution, small in particle and fluffy and light, and facilitates the formation of uniform coating on a ternary positive electrode base material.
H01M 4/62 - Emploi de substances spécifiées inactives comme ingrédients pour les masses actives, p.ex. liants, charges
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p.ex. LiMn2O4 ou LiMn2OxFy
57.
DOPED LITHIUM IRON PHOSPHATE ENCAPSULATED IN LIGAND, AND PREPARATION METHOD THEREFOR AND USE THEREOF
44@Mn-T-C/N; and T is at least one of zinc, nickel, copper, iron, cobalt, zirconium, aluminum, gallium, and chromium. The doped lithium iron phosphate encapsulated in ligand is in a doping type by doping with a composite-supported micro-carbon sphere conductor. The composite-supported micro-carbon sphere conductor has a particle size of 80-150 nm, and thus can withstand greater stress and reduce the probability of cracking. The structural integrity of the spherical lithium iron phosphate doped with the composite-supported micro-carbon sphere conductor is easier to control.
Disclosed in the present invention are a recovery method for a retired lithium ion battery electrode material and the use thereof. The method comprises disassembling a retired lithium ion battery, separating out a negative electrode plate, washing or soaking the negative electrode plate with water or an acid to obtain a lithium-containing solution and a lithium-removed negative electrode plate, and subjecting the lithium-containing solution to a precipitation treatment to obtain lithium carbonate; subjecting the lithium-removed negative electrode plate firstly to low-temperature calcination in a vacuum or an inert atmosphere to melt a binder, and then to high-temperature calcination to carbonize the binder to obtain a carbon-coated graphite material. In the present invention, a lithium resource in an SEI film of a graphite negative electrode is recycled, the SEI film in the negative electrode plate is washed or soaked, such that lithium ions enter a solution and lithium resource recovery is realized; the negative electrode plate is stepwise calcined, such that a binder PVDF is firstly melted and applied on the surface of the graphite, and then the PVDF is pyrolyzed and carbonized at a high temperature to form an in-situ carbon-coated recovered graphite material, and the modified graphite can still be used as an electrode material for recycling.
H01M 10/54 - Récupération des parties utiles des accumulateurs usagés
H01M 10/0587 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure enroulés, c. à d. des électrodes positives enroulées, des électrodes négatives enroulées et des séparateurs enroulés
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
59.
LITHIUM IRON PHOSPHATE MATERIAL AND PREPARATION METHOD THEREFOR
The present invention discloses a preparation method for a lithium iron phosphate material. The preparation method comprises the following steps: (1) mixing a zinc source, a copper source and a complexing agent solution, then mixing same with an iron source and a phosphoric acid source, subjecting the resulting mixture to evaporation and dehydration to obtain a jelly, and subjecting the jelly to primary sintering in a protective atmosphere to obtain a solid phase; and (2) mixing the solid-phase substance prepared in step (1) with a lithium source, grinding same, and subjecting same to secondary sintering in a protective atmosphere to obtain the lithium iron phosphate material. The lithium iron phosphate material prepared by using the method has a relatively good electrochemical performance, and can meet the increasingly high quality requirements of the market for electrode materials.
Disclosed in the present invention are a negative electrode material, a preparation method therefor, and an application thereof. The negative electrode material comprises a silicon-based core, a carbon-based layer wrapped on the surface of the silicon-based core, and a metal phosphide wrapped on the surface of the carbon-based layer, wherein the carbon-based layer has a pore structure. The negative electrode material of the present invention can greatly improve the cycling stability of a silicon-based negative electrode by means of the design of the structure and the components. The present invention also provides a preparation method for and an application of the described negative electrode material.
Disclosed in the present invention are a silicon-carbon material as well as a preparation method therefor and an application thereof. The silicon-carbon material comprises a core and a shell wrapping the core; the core is silicon; the shell is nitrogen and phosphorus co-doped porous carbon. According to the silicon-carbon material of the present invention, by means of the design of the structure and doping atoms, the conductivity of the silicon-carbon material can be remarkably improved, and moreover, a volume change in a charging and discharging process when the silicon-carbon material is used as a negative electrode active material is inhibited; finally, the cycle performance of the obtained silicon-carbon material is improved.
H01M 4/38 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'éléments simples ou d'alliages
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
62.
METHOD AND DEVICE FOR RECOVERING POSITIVE ELECTRODE MATERIAL FROM LITHIUM BATTERY SLURRY
Disclosed in the present invention are a method and a device for recovering a positive electrode material from a lithium battery slurry. The method comprises the following steps: shredding waste material, adding a solvent, and subjecting same to bubble crushing to obtain a first slurry; sieving the first slurry through a discharging hole; subjecting the first slurry with a size smaller than the diameter of the discharging hole to stage-by-stage overflow crushing to obtain a second slurry; subjecting the second slurry to flocculation and filter pressing to obtain a filter cake and a filtrate; and drying, crushing and pyrolyzing the filter cake to obtain a positive electrode material. The method can achieve continuous and large-batch treatment of the waste lithium battery slurry, and simplifies the slurry recovery process. In addition, the positive electrode material and the solvent are effectively separated and recycled; the recovery cost is reduced; and the whole process is environmentally friendly and energy-saving, such that the positive electrode powder can be conveniently treated at a later period. The total content of Ni, Co, Mn and Li metal in the recycled positive electrode powder is 50% or more, and the method has a good recovery value.
Disclosed are a photocatalyst and application thereof in environmentally friendly photocatalytic treatment of a power battery. The photocatalyst is obtained by loading Ag-TaON on a hollow glass microsphere, wherein a mass ratio of the Ag-TaON to the hollow glass microsphere is 1: 5 to 10. According to the invention, the Ag-TaON and the hollow glass microsphere are compounded, the hollow glass microsphere has better light permeability, which avoids mutual shielding between catalysts, such that the photocatalyst filled in a reactor is fully excited, which is capable of effectively improving a light utilization rate, thus improving the catalytic conversion efficiency of the photocatalyst.
Disclosed is a method for recycling a hydrogen fuel cell of a new energy vehicle, including the following steps of: (1) discharging and disassembling a hydrogen fuel cell in turn to obtain a hydrogen supply system, an air supply system, a cooling system and a galvanic pile; (2) disassembling the galvanic pile into a catalyst and carbon cloth, and ashing to obtain ash; (3) adding an auxiliary agent into the ash, mixing, introducing inert gas, heating, introducing oxidizing gas, and absorbing tail gas by using an ammonium salt solution; and (4) adding a reducing agent into the ammonium salt solution absorbing the tail gas in step (3) to react, filtering, taking and cleaning a filter residue to obtain Pt.
H01M 8/00 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Éléments à combustible; Leur fabrication
H01M 8/008 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Éléments à combustible; Leur fabrication Élimination ou recyclage des éléments à combustible
Provided are an expanded graphite and a preparation method therefor. The preparation method comprises the following steps: (1) in a protective atmosphere, mixing a graphite powder with a metal peroxide and/or alkali metal superoxide, and leaving same to stand to obtain a mixed graphite-metal peroxide and/or graphite-alkali metal superoxide composite material; (2) putting the composite material prepared in step (1) into a liquid medium, which can react with the metal peroxide and/or the alkali metal superoxide, for a reaction to obtain intercalated graphite; and (3) heating the intercalated graphite prepared in step (2) to prepare the expanded graphite. The preparation method can effectively avoid the generation of harmful impurities such as sulfur and sulfides during the preparation process of the expanded graphite, thereby reducing environmental pollution.
H01M 4/62 - Emploi de substances spécifiées inactives comme ingrédients pour les masses actives, p.ex. liants, charges
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p.ex. LiNiO2, LiCoO2 ou LiCoOxFy
67.
POSITIVE ELECTRODE MATERIAL WITH HIGH PEAK-INTENSITY RATIO, AND PREPARATION METHOD THEREFOR AND USE THEREOF
1-x-yxyab22, wherein 0 ≤ x ≤ 0.5, 0 ≤ y ≤ 0.6, a > 0, b > 0, and 0.002 ≤ a+b ≤ 0.04; M is at least two of Ni, Co, Mn, Zr, Nb, Sb, Y, Mo, P, S or B; and N is at least one of Al, Mg, Ti, Si, La, Ga, Sr, Co and Mn. The peak-intensity ratio of the positive electrode material of the present invention is greater than 1.8, and the Li/Ni mixing ratio is less than 3%. In addition, the high (003)/(104) peak-intensity ratio (a peak-intensity ratio greater than 1.8) means that cation mixing is sharply reduced, such that the gram volume and the dynamic performance of the positive electrode material are significantly improved.
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p.ex. LiMn2O4 ou LiMn2OxFy
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p.ex. LiNiO2, LiCoO2 ou LiCoOxFy
Disclosed is a sagger outer surface dust removal device, which comprises a sealed cabin, the sealed cabin being provided with a sagger as well as an air inlet and an air outlet; an air extraction apparatus, which is connected with the air outlet; a dust removal apparatus, which comprises several laser emitters, each laser emitter comprising a ring body, a laser head and a driving motor used for driving the ring body to rotate; a cleaning apparatus, which comprises a cleaning box and a filtering basin, the part of the ring body located outside the cleaning box being an exposed area and the cleaning box being provided with a heating area and a cleaning area connected with the filtering basin. When the driving motor drives the ring body to rotate, part of the surface of the ring body circularly passes through the cleaning area, the heating area and the exposed area in sequence. The laser dust removal apparatus of the device has a lens self-cleaning function, which allows for lens cleaning to ensure that the lens is clean while removing dust, thus improving work efficiency.
The invention pertains to the field of catalysts. Disclosed is a method for preparing an oxygen reduction catalyst employing graphite of a negative electrode of a waste battery. The method comprises the following steps: (1) recovering graphite slag from a waste battery, then performing heat treatment on the graphite slag; (2) performing ball-milling and mixing on the treated graphite slag, an iron salt, and a nitrogenous organic compound to acquire a catalyst precursor; (3) performing carbonization treatment on the catalyst precursor in an inert gas atmosphere to acquire a carbon-based mixture comprising iron and nitrogen; and (4) dissolving the carbon-based mixture comprising iron and nitrogen in an acid solution, performing filtration and drying, performing carbonization treatment again in an inert gas atmosphere, so as to acquire an oxygen reduction catalyst employing graphite of a negative electrode of a waste battery. The invention uses graphite slag generated in a recovery process of a waste lithium ion battery as a raw material. The graphite slag is widely available, and has low costs. The invention reduces environmental pollution, and has economic benefits.
Disclosed in the present invention are a production line and production method for a lithium ion battery positive electrode material. The production line comprises a roller kiln; a gas collection apparatus, which is in communication with the roller kiln and is used for collecting a gas from the roller kiln; and a free lithium measurement apparatus, which is used for measuring the content of free lithium in the gas that is collected by the gas collection apparatus. The production line for a lithium ion battery positive electrode material can monitor the state of free lithium in real time, such that a sintering parameter can be assessed in real time, so as to facilitate real-time adjustment of the sintering parameter, thereby reducing unqualified products, and avoiding the waste of raw materials.
F27B 9/30 - Fours dans lesquels la charge est déplacée mécaniquement, p.ex. du type tunnel; Fours similaires dans lesquels la charge se déplace par gravité - Parties constitutives, accessoires ou équipement particuliers aux fours de ces types
F27B 9/40 - Aménagement des dispositifs de commande ou de surveillance
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
71.
METHOD FOR RECOVERING WASTE LITHIUM COBALT OXIDE BATTERY
Disclosed in the present invention is a method for recovering a waste lithium cobalt oxide battery, the method comprising: feeding a lithium cobalt oxide battery black powder in a column-shaped container, adding a first acid to the column-shaped container for heat leaching until solids in the column-shaped container are not reduced any more so as to obtain a first leachate and leaching residues, wherein the first acid is a weak acid, and a filtering structure is arranged at the bottom of the column-shaped container; and adding a second acid to the column-shaped container containing the leaching residues for heat leaching until solids in the column-shaped container are not reduced any more so as to obtain a second leachate and graphite, wherein the second acid is a strong acid. According to the present invention, the leaching method of the battery black powder is changed, and the acid-resistant column-shaped container is selected to be used in cooperation with the first acid and the second acid to perform selective heat leaching for leaching, such that on the one hand, consumption of an inorganic strong acid can be reduced, emission of strong acid gas is reduced, and green and low-carbon heat leaching of the black powder is achieved; and on the other hand, the column-shaped container having a filtering structure is used, such that the acid consumption can be saved.
H01M 10/54 - Récupération des parties utiles des accumulateurs usagés
C01B 32/215 - Purification; Récupération ou purification du graphite produit lors de la fabrication du fer, p.ex. le graphite primaire
C01F 7/141 - Oxyde ou hydroxyde d'aluminium obtenus à partir d'aluminates de métaux alcalins à partir de solutions aqueuses d'aluminate par neutralisation avec un agent acide
C22B 3/00 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés
C22B 3/04 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés par lixiviation
A preparation method for a P2-type manganese-based sodium-ion battery positive electrode material, comprises: adding manganese dioxide to an oxalic acid solution for reaction to obtain a first reaction solution; adding a sodium hydroxide solution to the first reaction solution for reaction to obtain a second reaction solution; performing ice bath on the second reaction solution, adding a doped metal-containing alcohol solution for alcohol precipitation, and performing solid-liquid separation to obtain a precipitate; and mixing the precipitate with a manganese source, and grinding and calcining the mixture to obtain the P2-type manganese-based sodium-ion battery positive electrode material. According to the method, sodium manganate trioxalate is prepared by means of a complexation reaction of oxalic acid and manganese dioxide, and neutralization of sodium hydroxide. When the sodium-ion battery positive electrode material is prepared, a precipitate containing sodium manganate trioxalate is used as a sodium source, and no additional sodium source needs to be supplemented during sintering, so that the problem that Na+ in an external sodium source is difficult to completely enter a crystal lattice due to a large ionic radius is avoided, the sodium residues on the surface of the material are reduced, and the electrochemical performance of the material is further improved.
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p.ex. LiMn2O4 ou LiMn2OxFy
Provided in the present invention is a treatment method for wastewater containing a cyanide and an oxalate. The treatment method comprises: first adjusting the pH value of the wastewater, then sequentially adding a ferrite and a flocculant into the wastewater, leaving same to stand for settling, followed by filtering, then sequentially adding an alkali treating agent and a flocculant thereto, subjecting same to solid-liquid separation, and adjusting the pH value of the wastewater again. In the treatment method of the present invention, under weakly acidic to weakly alkaline conditions, excess ferrous ions are first added to enable the ferrous ions to be fully combined with ferricyanide, ferrocyanide and oxalate ions in the wastewater so as to generate precipitates, and then solid-liquid separation is performed, such that the aim of removing cyanide and organic matters is achieved; and then a proper amount of an alkaline reagent is added to enable hydroxyl to react with heavy metal ions and excess ferrous ions in the wastewater so as to generate precipitates, and then solid-liquid separation is performed, such that the aim of removing the heavy metal ions is achieved.
Disclosed in the present invention is a production process of a lithium battery positive electrode material, comprising the following steps: (1) temperature difference test: putting, into a sagger, a material to be sintered, placing the sagger into a roller kiln heat preservation area, setting a same sintering temperature t on the upper layer and the lower layer of the roller kiln heat preservation area according to the characteristics of said material, sintering in a specific atmosphere, and measuring a temperature difference Δt between material surface layer and bottom layer during sintering; and (2) formal sintering: putting said material into the sagger, placing the sagger into the roller kiln heat preservation area, setting the sintering temperature of the upper layer of the roller kiln heat preservation area as t according to the temperature differenceΔt measured in step (1), the sintering temperature of the lower layer being (t+Δt), and sintering said material in a specific atmosphere. The production process can effectively improve the consistency of the prepared lithium battery positive electrode material.
F27B 9/30 - Fours dans lesquels la charge est déplacée mécaniquement, p.ex. du type tunnel; Fours similaires dans lesquels la charge se déplace par gravité - Parties constitutives, accessoires ou équipement particuliers aux fours de ces types
F27B 9/40 - Aménagement des dispositifs de commande ou de surveillance
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p.ex. LiMn2O4 ou LiMn2OxFy
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p.ex. LiNiO2, LiCoO2 ou LiCoOxFy
76.
HARD CARBON NEGATIVE ELECTRODE MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Disclosed in the present invention are a hard carbon negative electrode material, and a preparation method therefor and the use thereof. A substrate of the hard carbon negative electrode material is prepared by taking starch as a raw material; and the diameter of an internal pore of the hard carbon negative electrode material is greater than that of a surface pore thereof. The rational pore diameter and large interlayer spacing of the hard carbon negative electrode material are beneficial to the intercalation/deintercalation of sodium ions.
Disclosed in the present invention is a preparation method for porous sodium ion battery positive electrode material sodium iron phosphate, comprising mixing ferrous nitrate, silver nitrate, and a reducing agent to prepare a mixed solution; dropwise adding the mixed solution into a carbonate solution for reaction to obtain a precipitate; mixing the precipitate with sodium dihydrogen phosphate and sodium iodide, and then grinding; and sintering the ground material under the condition of air isolation, and soaking the sintered material in an organic solvent to obtain the porous sodium ion battery positive electrode material sodium iron phosphate. According to the present invention, a mixture of silver carbonate and ferrous carbonate is prepared by means of a coprecipitation method; a silver-iron atomic-scale doped eutectic is obtained and then is co-sintered with sodium dihydrogen phosphate and sodium iodide to prepare sodium iron phosphate; when sodium dihydrogen phosphate and ferrous carbonate are subjected to solid phase mixing and sintering, silver carbonate is decomposed into carbon dioxide and silver oxide, and silver oxide is then decomposed into a silver simple substance and oxygen; and the silver simple substance can enhance the conductivity of a material, and does not lead potential safety hazards to a battery like other magnetic foreign matters and impurities.
A preparation method for and an application of a negative electrode plate of a tin-based sulfide sodium-ion battery. The preparation method comprises: heating alloy foil and oxidizing gas for reaction to obtain nano-porous metal foil, the alloy foil being copper-tin alloy or aluminum-tin alloy, and the oxidizing gas being chlorine gas or mixed gas of chlorine gas and inert gas; and placing the metal foil in an organic solvent, then adding tin tetrachloride and an organic sulfide into the organic solvent, and performing a heating reaction in an inert atmosphere to obtain the negative electrode plate of the tin-based sulfide sodium-ion battery. The alloy foil reacts with the chlorine gas, aluminum in the alloy foil is oxidized to form a dense oxide film, copper does not react with the chlorine gas, so that dealloying of tin is achieved and the nano-porous metal foil is obtained; tin disulfide is prepared by using a solvothermal method, and the tin disulfide is inlaid by using nano-pores of the metal foil as a template, so that the subsequent coating process of a negative electrode material is avoided; and the embedded structure is compact, the phenomenon of powder falling is avoided, and the cycle performance of the tin disulfide as a negative electrode material is improved.
H01M 4/1395 - Procédés de fabrication d’électrodes à base de métaux, de Si ou d'alliages
H01M 4/1397 - Procédés de fabrication d’électrodes à base de composés inorganiques autres que les oxydes ou les hydroxydes, p.ex. sulfures, séléniures, tellurures, halogénures ou LiCoFy
A battery conveying belt, comprising a base (1), a plurality of parallel connecting shafts (2), and a plurality of conveying wheels (3). The connecting shafts (2) are mounted on the base (1), and the connecting shafts (2) are arranged at intervals. The conveying wheels (3) are mounted on the connecting shafts (2), and each conveying wheel (3) comprises a stator (31), a rotor (32), a coil (33), a pushing member (34), a receiver (35), a control circuit (36) and a hub (37). The stator (31) is sleeved on a corresponding connecting shaft (2) and fixed together with the connecting shaft (2), the coil (33) is sleeved outside the stator (31), the rotor (32) is sleeved outside the coil (33), a gap is reserved between the rotor (32) and the coil (33), the hub (37) is sleeved outside the rotor (32), a first bearing (323) is connected between the hub (37) and the rotor (32), the pushing member (34) is respectively connected to the hub (37) and the rotor (32), the rotor (32) drives the hub (37) to rotate by means of the pushing member (34), the receiver (35) is located on the rotor (32), and the control circuit (36) is electrically connected to the coil (33) and the receiver (35), respectively. When a battery (7) is placed on the hub (37), the pushing member (34) abuts against the receiver (35). By arranging the receiver (35) on the rotor (32), when the conveying wheel (3) is subjected to the pressure of the battery (7), the rotor (32) can accelerate to drive the hub (37) to rotate.
B65G 47/28 - Dispositifs pour influencer la position relative ou l'orientation des objets pendant le transport par transporteurs arrangeant les objets, p.ex. faisant varier l'espace entre chaque objet pendant le transport par un seul transporteur
B65G 47/24 - Dispositifs pour influencer la position relative ou l'orientation des objets pendant le transport par transporteurs présentant les objets selon un orientement donné
B65G 43/08 - Dispositifs de commande actionnés par l'alimentation, le déplacement ou le déchargement des objets ou matériaux
80.
PREPARATION METHOD FOR ZINC MANGANATE NEGATIVE ELECTRODE MATERIAL
A preparation method for a zinc manganate negative electrode material, which method comprises the following steps: (1) preparing a solution A containing manganese ions and a solution B containing zinc hydroxide; (2) dispersing an adsorption carrier into the solution B; (3) taking alkali liquor as a base solution, and adding the solution A, the solution B and an oxidant solution to the base solution while stirring; (4) subjecting the reacted material to solid-liquid separation to obtain a solid; and (5) washing, drying and calcining the solid to obtain a zinc manganate negative electrode material. The zinc manganate negative electrode material prepared by the preparation method has a good cycle performance.
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p.ex. LiMn2O4 ou LiMn2OxFy
81.
METHOD FOR PREPARING COPPER-BASED NEGATIVE ELECTRODE MATERIAL BY USING WASTE BATTERY
Disclosed in the present invention is a method for preparing a copper-based negative electrode material by using a waste battery. The method comprises the following steps: (1) disassembling a waste battery and taking out a negative electrode plate; (2) using the negative electrode plate of step (1) as an anode, using a copper foil current collector as a cathode, and electroplating same in an electroplating solution; (3) after the completion of the electroplating, collecting a negative electrode powder that is separated from the anode, and soaking the copper foil current collector in an acid solution; (4) washing and drying the soaked copper foil current collector; and (5) calcining the copper foil current collector to obtain a copper-based negative electrode material. By means of the method, the negative electrode powder on the waste battery negative electrode plate can be conveniently recycled, the environment is not polluted, and the prepared copper-based negative electrode material can be directly used as a battery negative electrode and has a relatively good cycling performance.
st444)/F@M-C, 2≤s≤4, and 0.5≤t≤1.5; and M is an oxide of at least one of zinc, nickel, aluminum, manganese, chromium, molybdenum, manganese, copper, and calcium. In the sodium-ion positive electrode material of the present invention, a stabilizer is added so that the structural stability of the positive electrode material is strengthened, and cyclic discharge performance of the material is improved; a coating layer (formed by tightly combining a metal oxide and the positive electrode material) in the sodium-ion positive electrode material can stabilize ion and electron transport kinetic properties of the material, improve cycle performance of the positive electrode material, hinder the material from continuing agglomeration, and control a particle size.
Disclosed in the present invention are a magnetic aluminum-based adsorbent and a preparation method therefor. The preparation method comprises the following steps: mixing a carbon black slag powder, porous aluminum oxide and a polar solution, calcining same, then mixing the magnetic powder with a cross-linking agent, then injecting same into a forming mold for treatment and formation, then stripping same, and activating same, so as to obtain the magnetic aluminum-based adsorbent. The magnetic aluminum-based adsorbent prepared by the preparation method has a relatively high adsorption property and can adsorb low-concentration metal ions in wastewater generated by wet recovery of waste batteries well.
B01J 20/20 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtration; Absorbants ou adsorbants pour la chromatographie; Procédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant du carbone obtenu par des procédés de carbonisation
B01J 20/28 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtration; Absorbants ou adsorbants pour la chromatographie; Procédés pour leur préparation, régénération ou réactivation caractérisées par leur forme ou leurs propriétés physiques
B01J 20/30 - Procédés de préparation, de régénération ou de réactivation
C02F 1/28 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par absorption ou adsorption
84.
CARBON NANOSHEET-BASED SODIUM-ION BATTERY NEGATIVE ELECTRODE MATERIAL, AND PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
The present invention relates to the technical field of batteries, and in particular to a communication method and apparatus for a lithium battery, and a life cycle statistical method. The communication method comprises: acquiring position information of a lithium battery by means of a GPS module, and according to the acquired position information, determining whether the lithium battery is in a pre-stored communicable area; and when the lithium battery is in the pre-stored communicable area, activating a communication module of the lithium battery, such that the communication module is connected to a signal-transmitting unit in the communicable area according to a pre-stored account and password, usage information of the lithium battery is sent to a server by means of the signal-transmitting unit, and the communication module adds serial number information of the battery when sending the usage information. The present invention has the beneficial effect of usage information of the lithium battery being able to be stably and securely sent to a server for storage by determining the position of a lithium battery and connecting same to a signal-transmitting unit in a pre-stored communicable area, thereby preventing data interruption and loss.
G01R 31/371 - Dispositions pour le test, la mesure ou la surveillance de l’état électrique d’accumulateurs ou de batteries, p.ex. de la capacité ou de l’état de charge avec indication à distance, p.ex. sur des chargeurs séparés
G01R 31/382 - Dispositions pour la surveillance de variables des batteries ou des accumulateurs, p.ex. état de charge
A washing method for a ternary precursor. According to the washing method, by means of multi-stage alcohol leaching, on the premise of ensuring that various properties of a washed material to be dried are identical to those of a material to be dried in a conventional washing process, the moisture contained in the washed material is less, and the washed material is easier to dry. In the washing method for the ternary precursor, a washing procedure in a back-end program of an existing washing procedure is replaced with at least two stages of echelon multistage washing procedures, and the mass fraction of an alcohol solution in a post-washing procedure is higher than that of the alcohol solution in a pre-washing procedure. According to the washing procedures, the basic principle of small amount for multiple times of washing is followed, so that the washing consistency is better, and on the premise of ensuring that the various properties of the washed material to be dried are basically identical to those of the material to be dried in the conventional washing process, the moisture contained in the washed material is less, and the washed material is easier to dry.
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p.ex. LiMn2O4 ou LiMn2OxFy
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p.ex. LiNiO2, LiCoO2 ou LiCoOxFy
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
87.
METHOD FOR RECOVERING LITHIUM BATTERY POSITIVE ELECTRODE PLATE
Disclosed in the present invention is a method for recovering a lithium battery positive electrode plate. A method for recovering a lithium battery positive electrode plate. The method comprises the following steps: S1. reacting a positive electrode plate material with a metal salt in an aqueous solution, wherein the standard electrode potential of metal in the metal salt is higher than that of aluminum; S2. dissolving and soaking a solid obtained in step S1 with a mixed solution of an acid and a reducing agent; and S3. subjecting a leachate obtained in step S2 to a fluorine removal treatment, then extracting a transition metal in the leachate, and precipitating and separating lithium from the raffinate. In the method for recovering a lithium battery positive electrode plate of the present invention, aluminum impurities in the positive electrode plate material and fluorine impurities in the leachate can be thoroughly removed by means of the cooperation of all the steps and the raw materials used; in addition, it is guaranteed that the loss rate of valuable metal in the positive electrode plate material is ≤ 0.1%.
H01M 10/54 - Récupération des parties utiles des accumulateurs usagés
H01M 4/131 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Électrodes Électrodes composées d'un ou comprenant un matériau actif Électrodes pour accumulateurs à électrolyte non aqueux, p.ex. pour accumulateurs au lithium; Leurs procédés de fabrication Électrodes à base d'oxydes ou d'hydroxydes mixtes, ou de mélanges d'oxydes ou d'hydroxydes, p.ex. LiCoOx
88.
ROD-SHAPED SODIUM ION POSITIVE ELECTRODE MATERIAL, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
ab4ab44 rod-shaped nanostructure is optimized, and the added nanofibers can relieve stress and size change generated in the process of embedding and removing sodium ions.
Disclosed in the present invention is a method for recycling valuable metal in a lithium battery positive plate, comprising the following steps: S1, mixing a positive plate material with reducing metal, and then roasting, the roasting being carried out in a protective atmosphere; S2, performing magnetic separation on the material obtained in step S1 to obtain a magnetic component and a non-magnetic component; S3, performing acid dissolution on the magnetic component, concentrating the obtained leaching solution, and then performing cooling crystallization to obtain a metal salt A; and S4, performing water soaking on the non-magnetic component to obtain sediment and water soaking liquid, adding carbonate into the water soaking liquid to obtain lithium carbonate, performing acid dissolution on the sediment, purifying, and performing evaporative crystallization to obtain a dissolved solution to obtain a metal salt B. According to the recycling method of the present invention, the purpose of omitting extraction and accessory steps thereof can be achieved by means of simple impurity removal and separation processes, the technological process is simplified, and the investment cost is reduced.
C30B 7/14 - Croissance des monocristaux à partir de solutions en utilisant des solvants liquides à la température ordinaire, p.ex. à partir de solutions aqueuses le matériau à cristalliser étant produit dans la solution par des réactions chimiques
C30B 28/04 - Production de matériaux polycristallins homogènes de structure déterminée à partir de liquides
C30B 29/46 - Composés contenant du soufre, du sélénium ou du tellure
C25C 3/06 - Production, récupération ou affinage électrolytique de métaux par électrolyse de bains fondus de l'aluminium
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 4/485 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques d'oxydes ou d'hydroxydes mixtes pour insérer ou intercaler des métaux légers, p.ex. LiTi2O4 ou LiTi2OxFy
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p.ex. LiMn2O4 ou LiMn2OxFy
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p.ex. LiNiO2, LiCoO2 ou LiCoOxFy
H01M 10/054 - Accumulateurs à insertion ou intercalation de métaux autres que le lithium, p.ex. au magnésium ou à l'aluminium
tfs1-s2tfs1-s22 material; and after nitrogen-doped-polymeric porous nanopowder is deposited, the nitrogen-doped-polymeric porous nanopowder can provide a considerable specific surface area, and can also shorten a migration path of ions in the material, thereby improving the electrochemical performance.
H01M 4/62 - Emploi de substances spécifiées inactives comme ingrédients pour les masses actives, p.ex. liants, charges
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p.ex. LiNiO2, LiCoO2 ou LiCoOxFy
92.
METHOD FOR REMOVING CALCIUM-ENRICHED LITHIUM FROM SALT LAKE BRINE WITH HIGH CALCIUM-LITHIUM RATIO
A method for removing calcium-enriched lithium from salt lake brine with a high calcium-lithium ratio. The method comprises the following steps: (1) naturally evaporating the original lithium-containing brine of a calcium chloride type salt lake to precipitate a mixed salt of potassium and sodium, and then acidifying the brine to remove boron; and (2) subjecting the brine treated in step (1) to natural evaporation-freezing calcium precipitation operation at least once, wherein the freezing calcium precipitation operation involves cooling the brine to precipitate a calcium chloride crystal, and then performing solid-liquid separation on same to obtain a lithium-enriched concentrated brine. The method has the characteristics of a simple process, simple operation, high calcium-lithium separation efficiency and low consumption of energy, water and chemical reagents. The method is particularly suitable for extracting lithium from salt lake brine with high calcium-lithium ratio in areas with poor infrastructure and insufficient energy supply, and has a practical significance on the utilization of lithium resources in salt lakes.
Disclosed in the present invention are a compositely coated ternary precursor, and a preparation method therefor and the use thereof. The material comprises a ternary precursor and a coating layer attached to a surface of the ternary precursor, wherein the coating layer is obtained from a precipitation reaction of first metal ions and first polyanions. In the present invention, metal ions and polyanions can undergo a precipitation reaction to form a precipitate, and since a surface of the ternary precursor has a large number of active sites, a relatively high specific surface energy is achieved, and the precipitate is easy to adhere and grow, such that a uniformly distributed coating layer is formed on the surface of the ternary precursor. After the coated precursor is sintered into a positive electrode material, part of the coating can form a protective layer on the surface of the material, so that the dissolution of Ni and Co is reduced, the side reaction of the positive electrode material and an electrolyte is inhibited, and the irreversible phase change of the surface of the material is reduced, thereby improving the stability of the ternary material; and the other part of the coating can permeate into the material to form bulk phase doping.
H01M 4/62 - Emploi de substances spécifiées inactives comme ingrédients pour les masses actives, p.ex. liants, charges
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p.ex. LiMn2O4 ou LiMn2OxFy
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p.ex. LiNiO2, LiCoO2 ou LiCoOxFy
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
94.
METHOD FOR PREPARING REFRACTORY MATERIAL FROM WASTE BATTERY RESIDUES, AND USE OF REFRACTORY MATERIAL
A method for preparing a refractory material from waste battery residues. The method comprises the following steps: (1) disassembling waste batteries, then sorting same to obtain positive and negative electrode powders, leaching the positive and negative electrode powders with an acid, filtering same to obtain a graphite slag, and then subjecting the filtrate to copper removal, followed by the addition of an alkali for a precipitation reaction, wherein the resulting precipitate is an iron-aluminum slag; (2) wrapping the graphite slag obtained in step (1) with wet clay to form an inner core material, then mixing wet clay with the iron-aluminum slag, wrapping the inner core material with same, and aging the wrapped inner core material to obtain a blank; (3) pre-sintering, calcining and cooling the blank prepared in step (2) to obtain a fired product; and (4) washing and drying the fired product to obtain the refractory material. By means of the present method, waste residues generated during the recovery process of waste batteries can be further recycled, thereby preventing same from causing secondary pollution to the environment.
A method for recycling and preparing a positive electrode material from waste lithium iron phosphate batteries. The method comprises the following steps: discharging, crushing, and stripping waste lithium iron phosphate batteries to obtain black powder; then mixing the black powder with benzenesulfonate, and reacting in a fluidized bed; and then adding an acid and an alkali to remove impurities, finally adding a lithium supplement, an iron supplement, or a phosphate, and a reducing agent, and sintering. According to the method, by controlling and optimizing the crushing, stripping, carbon and fluorine removal, and impurity removal processes, a positive electrode material with high purity can be recycled while controlling the recycling cost, and batteries prepared by means of the recycled positive electrode material have good performance. According to the method, the contents of aluminum, copper, carbon, and fluorine in the black powder can be effectively reduced; moreover, when regenerating a positive electrode material, there is only a need to supplement iron or lithium and carry out carbothermic reduction.
The present invention relates to the technical field of pipeline cleaning. Disclosed is a pipeline cleaning device, which comprises a pipeline, a driving mechanism, an air blower and a cleaning mechanism. The pipeline is provided with an opening. The driving mechanism is mounted at the opening, and the driving mechanism comprises a driver and a lifting rope, and the driver controls the lifting rope to be wound and unwound. The air blower is mounted on the driving mechanism, and an air outlet of the air blower faces the interior of the pipeline. The cleaning mechanism comprises a main body, a brush and at least three guide wheels, wherein the main body is connected to the end of the lifting rope away from the driver, the brush is located below the main body, the guide wheels surround the main body, and the brush and the guide wheels abut against the inner wall of the pipeline. The air blower is mounted at the opening, and the driver and the air blower are used for driving the brush to ascend or descend. In the movement process of the brush, neither of an electric wire and a battery is required, and dust brushed off is more easily discharged from the pipeline by means of blowing of a high-pressure airflow, thereby improving the cleaning effect.
B08B 9/053 - Nettoyage de conduites ou de tubes ou des systèmes de conduites ou de tubes Élimination des bouchons utilisant des dispositifs de nettoyage introduits dans et déplacés le long des tubes déplacés le long des tubes par un fluide, p.ex. par pression de fluide ou par aspiration
B08B 9/043 - Nettoyage de conduites ou de tubes ou des systèmes de conduites ou de tubes Élimination des bouchons utilisant des dispositifs de nettoyage introduits dans et déplacés le long des tubes déplacés par liaison mécanique actionnée de l'extérieur, p.ex. poussés ou tirés dans les tubes
B08B 9/045 - Nettoyage de conduites ou de tubes ou des systèmes de conduites ou de tubes Élimination des bouchons utilisant des dispositifs de nettoyage introduits dans et déplacés le long des tubes déplacés par liaison mécanique actionnée de l'extérieur, p.ex. poussés ou tirés dans les tubes les dispositifs de nettoyage étant mis en rotation pendant le déplacement
B08B 9/04 - Nettoyage de conduites ou de tubes ou des systèmes de conduites ou de tubes Élimination des bouchons utilisant des dispositifs de nettoyage introduits dans et déplacés le long des tubes
97.
RECOVERY PROCESSING METHOD FOR SPENT BATTERY ELECTRODE PLATE
Disclosed in the present invention is a method for recovering and processing a retired battery electrode plate. The method comprises disassembling a retired battery to obtain an electrode plate, energizing two ends of the electrode plate until a binder on the electrode plate is heated and melted, and then separating out an electrode material and a current collector, and when the electrode plate is a negative electrode plate, ball milling the separated electrode material, winnowing the ball-milled material to obtain graphite, subjecting the graphite to an alkali treatment, adding the graphite, which has been subjected to the alkali treatment, and an aggregate to softened asphalt, and stirring same to obtain conductive asphalt. In the present invention, the two ends of the electrode are energized, such that the binder is melted into liquid to flow out of the current collector, and the electrode material is stripped off the electrode plate. The method has a low energy consumption and a high graphite recovery rate; subjecting the graphite to the alkali treatment can reserve -OH on the surface of the graphite and part of alkali between graphite layers, and can improve the interface bonding property of the graphite to the asphalt, such that the structure is tighter, the compressive strength is higher, and the service life is longer during the process of using the conductive asphalt.
242423333 coating layer, which also protects the material. That is, a primary particle and a secondary sphere of the present material both have coating layers, which greatly enhances electrical conductivity of the material and improves the capacity, circulation, and rate performance of the material.
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p.ex. LiNiO2, LiCoO2 ou LiCoOxFy
99.
CARBON EMISSION ACCOUNTING METHOD, APPARATUS AND SYSTEM FOR WASTE BATTERY RECYCLING
Disclosed in the present invention are a carbon emission accounting method, apparatus and system for waste battery recycling. The carbon emission accounting apparatus comprises a data collection unit and an average-value calculation unit. The carbon emission accounting apparatus comprises a collection transmission module and a calculation processing module. The method comprises: collecting carbon emission data groups multiple times within a period; and according to the carbon emission data groups and a preset carbon emission accounting formula group, calculating an average carbon emission amount corresponding to data collected multiple times within the period. By means of the carbon emission accounting method, apparatus and system, accurate data support is provided for carbon emission amount monitoring of enterprises in carbon trading and waste battery recycling, thereby improving the manageability and controllability of carbon emissions of the enterprises. Furthermore, by means of the carbon emission accounting method, apparatus and system for waste battery recycling disclosed in the present invention, an analysis report is further generated according to an average carbon emission amount, and the analysis report is sent to a user, thereby improving the visualization and interactivity of carbon emission accounting.
G06Q 10/06 - Ressources, gestion de tâches, des ressources humaines ou de projets; Planification d’entreprise ou d’organisation; Modélisation d’entreprise ou d’organisation
The present application provides a carbon emissions accounting boundary definition method and apparatus for power battery recycling. The definition method comprises: configuring an overall process flow range for the recycling of a decommissioned power battery; according to the overall process flow range, and in combination with an assessment requirement corresponding to carbon emissions accounting, generating a corresponding boundary; according to the boundary, outputting a unit process and an inventory structure corresponding decommissioned power battery recycling. The present application, by means of defining a carbon emissions accounting boundary, determines a clear and standardized system boundary relative to the prior art. This increases the accuracy of carbon emissions accounting and life cycle assessment of decommissioned power batteries, and is more suitable for practical applications.
G06Q 10/06 - Ressources, gestion de tâches, des ressources humaines ou de projets; Planification d’entreprise ou d’organisation; Modélisation d’entreprise ou d’organisation
brevets
