Toyocolor Co., Ltd

Artience Co., Ltd.

Tetsuro Izumiya

Yu Morita

Yu Aotani

Hirotomo Ito

Provided is a conductive material dispersion including: a conductive material containing at least one kind selected from the group consisting of a carbon nanotube and carbon black; carboxymethyl cellulose or its salt; and water. The carboxymethyl cellulose or its salt has a weight average molecular weight of 10,000 to 150,000 and an etherification degree of 0.5 to 0.9. A product of the complex elastic modulus (Pa) and the phase angle (°) of the conductive material dispersion is 100 or more and 1,500 or less.

Conductive material dispersion, method for producing the same, and composition for secondary battery electrode, electrode film, secondary battery, and vehicle using conductive material dispersion

A carbon nanotube dispersion liquid for nonaqueous electrolyte secondary battery is a carbon nanotube dispersion liquid containing carbon nanotubes, a dispersant and a solvent, and is characterized in satisfying (1) to (3) below: (1) the average outer diameter of the carbon nanotubes ranging from more than 3 nm to 25 nm; (2) the BET surface area of the carbon nanotubes ranging from 150 m/g to 800 m/g; and (3) the fiber length of the carbon nanotubes in the carbon nanotube dispersion liquid ranging from 0.8 μm to 3.5 μm.

Carbon nanotube dispersion liquid for nonaqueous electrolyte secondary battery, resin composition using the same, mixture slurry, electrode film, and nonaqueous electrolyte secondary battery

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Tokyo, Japan

Tetsuro Izumiya