Patent ID: 11831020

Abstract:
Provided is a conductive material dispersion liquid for an electrochemical device capable of forming an electrode that has excellent flexibility and smoothness and can cause an electrochemical device to display excellent cycle characteristics. The conductive material dispersion liquid contains a conductive material, a dispersant including CNTs, and a dispersion medium. The conductive material dispersion liquid has a Casson viscosity of 30 (Pa·s)1/2 or less, Casson yield value of 20 Pa1/2 or less, and hysteresis constant calculated by formula (I) (hysteresis constant C=(N1−N2)/N1) of 0.7 or less. N1 is viscosity (Pa·s) of the conductive material dispersion liquid at a shear rate of 10 s−1 when viscosity (25° C.) is measured while increasing shear rate from 10−2 s−1 to 103 s−1, and N2 is viscosity (Pa·s) thereof at a shear rate of 10 s−1 when viscosity (25° C.) is measured while decreasing shear rate from 103 s−1 to 10−2 s−1.