Conductive Material Dispersion Liquid, Electrode, and Lithium Secondary Battery

Abstract

A conductive material dispersion liquid includes a single-walled carbon nanotube cluster. The single-walled carbon nanotube cluster has a number average length of 0.8 μm to 8.0 μm, and a length greater than 10 μm accounts for 15% or less of the total number. The single-walled carbon nanotube cluster has a number average diameter of 5 nm to 30 nm, and a diameter greater than 30 nm accounts for 15% or less of the total number. The length and the diameter of the single-walled carbon nanotube cluster are measured using an atomic force microscopy (AFM). Also provided is an electrode including the single-walled carbon nanotube cluster. Due to excellent dispersibility, a conductive network is well created, and excellent conductivity may thus be secured even with small amounts. Due to low viscosity of the dispersion liquid, processibility is excellent.

Dependencies are inferred from the claim text.