Nonaqueous electrolyte secondary battery negative electrode, binder for nonaqueous electrolyte secondary battery negative electrode, and nonaqueous electrolyte secondary battery

Abstract

A negative electrode for a nonaqueous electrolyte secondary battery having improved life characteristics, a binder for a negative electrode of a nonaqueous electrolyte secondary battery, and a nonaqueous electrolyte secondary battery. The negative electrode for a nonaqueous electrolyte secondary battery according to an embodiment includes a current collector, and a mixture layer formed on the current collector and having an active material and a binder. In the binder, an intermolecular chain network in which crosslinking by irreversible bonding and crosslinking by reversible bonding are mixed is formed. For example, a crosslinking treatment is applied to the binder. At this time, by performing crosslinking by reversible bonding and irreversible bonding, crosslinking unevenness is more suppressed, and local concentration of loads on the binder is more suppressed.

Dependencies are inferred from the claim text.