Abstract

Provided is a method for producing a resin composition for secondary battery electrodes, the method comprising adding a binder resin to a carbon nanotube dispersion liquid which contains carbon nanotubes, a dispersing agent, and a nonaqueous dispersion medium and in which the product (X×Y) of the complex elastic modulus X(Pa) and the phase angle Y(°) at 25°C and 1 Hz obtained by dynamic viscoelastic measurement is 30 to 1,700 and the phase angle is 3° to 90°.

IPC Classes  ?

• H01M 4/139 - Processes of manufacture

Abstract

Provided is a resin composition for secondary battery electrodes which contains carbon nanotubes, a dispersing agent, a fluororesin, and a dispersion medium and in which the product (X×Y) of the complex elastic modulus X(Pa) and the phase angle Y(°) at 25°C and 1 Hz obtained by dynamic viscoelastic measurement is 30 to 5,000.

IPC Classes  ?

• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/139 - Processes of manufacture
• H01M 10/058 - Construction or manufacture

Abstract

Provided is a conductive material dispersion containing: a conductive material; a polymer including aliphatic hydrocarbon structural units and nitrile group-containing structural units; and a dispersion medium, the conductive material being at least one selected from a group consisting of carbon nanotubes and acetylene black. The Mooney viscosity (ML1+4 at 100°C) of the polymer is 20-80 inclusive. The aliphatic hydrocarbon structural units include alkylene structural units, and the content of the aliphatic hydrocarbon structural units relative to the mass of the polymer is at least 40 mass% but less than 85 mass%. The content of the nitrile group-containing structural units relative to the mass of the polymer is 15-50 mass% inclusive. The product (X×Y) of the complex elastic modulus X (Pa) and the phase angle Y (°) of the conductive material dispersion according to dynamic viscoelasticity measurement is 30-1,700 inclusive.

IPC Classes  ?

• H01M 4/1391 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx

Abstract

The purpose of the present invention is to provide a white conductive primer coating composition with which it is possible to form, on a plastic base material, a coating film of high brightness and adequate conductivity. The present invention pertains to an aqueous white conductive primer coating composition that contains a binder component (A) and a carbon nanotube dispersion liquid (B), wherein: a coating film formed with said aqueous white conductive primer coating composition has a L* value of at least 80 according to whiteness based on the CIE color-matching function and has a surface electrical resistivity of 108 O/? or lower.

IPC Classes  ?

• C09D 5/24 - Electrically-conducting paints
• C09D 7/61 - Additives non-macromolecular inorganic
• B05D 5/12 - Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a coating with specific electrical properties
• B05D 7/02 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
• C09D 123/00 - Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
• C09D 133/06 - Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical