NEGATIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY, NEGATIVE ELECTRODE FOR SECONDARY BATTERY, SECONDARY BATTERY, BATTERY PACK, ELECTRIC VEHICLE, ELECTRIC POWER STORAGE SYSTEM, ELECTRIC TOOL, AND ELECTRONIC EQUIPMENT

摘要

This secondary battery is provided with a positive electrode, a negative electrode, and an electrolytic solution. The negative electrode includes: a negative electrode current collector; and a negative electrode active material layer which is provided on the negative electrode current collector and which includes a negative electrode active material having a surface thereof covered with one or more films containing at least one of polyvinylidene fluoride and copolymers thereof.