SLURRY COMPOSITION FOR NEGATIVE ELECTRODES OF LITHIUM ION SECONDARY BATTERIES, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES, LITHIUM ION SECONDARY BATTERY AND PRODUCTION METHOD

摘要

A slurry composition for negative electrodes of lithium ion secondary batteries, which contains 100 parts by mass of (A) an active material, from 0.1 part by mass to 10 parts by mass (inclusive) of (B) a water-soluble thickening agent having a carboxyl group, from 0.1 part by mass to 5 parts by mass (inclusive) of (C) a particulate binder, from 0.01 part by mass to 5 parts by mass (inclusive) of (D) a crosslinking agent and water, and wherein the ratio of the components having a molecular weight of 3,000 or less in the slurry composition relative to the total solid content of the slurry composition is 0.10% by mass or less as determined by gel permeation chromatography; a method for producing this slurry composition for negative electrodes of lithium ion secondary batteries; a negative electrode which uses this slurry composition for negative electrodes of lithium ion secondary batteries; and a secondary battery which uses this negative electrode.