SLURRY COMPOSITION FOR NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, MANUFACTURING METHOD FOR NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY

摘要

This slurry composition for a negative electrode for a lithium ion secondary battery includes a negative electrode active material, a particulate binder and a water-soluble polymer. A 200μm thick composite film that comprises the particulate binder and the water-soluble polymer and that has been swollen in an electrolytic solution has a breaking strength of 20-90MPa.