CARBON NANOTUBE DISPERSION AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a carbon nanotube dispersion having an effect of significantly improving cycle characteristics when added as a conductive assistant of a nonaqueous electrolyte secondary battery electrode active material.SOLUTION: The carbon nanotube dispersion contains 2 to 15 wt.% of carbon nanotube powders whose BET specific surface area is 70 to 250 m/g. Viscosity at a temperature of 25°C and at a shear rate of 383 sis 2 to 110 mPa s.