Negative electrode for lithium-ion secondary battery, and lithium-ion secondary battery

Abstract

A lithium-ion secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The negative electrode includes first negative electrode active material particles. The first negative electrode active material particles each include a center part and a covering part. The center part includes a silicon-containing material. The covering part is provided on a surface of the center part and includes a first compound and a second compound. The first compound includes at least one of polyacrylate or polyacrylamide. The second compound includes at least one of polyvinyl alcohol or polyvinyl acetal.

Dependencies are inferred from the claim text.