NEGATIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

摘要

A negative electrode (10) for use in a non-aqueous electrolyte secondary battery comprises an active material layer (12) containing a particle (12a) of an active material. At least a part of the surface of the particle (12a) is coated with a layer of a metal material (13). A void is formed between the particles (12a) that are coated with the metal material (13). The layer is composed of two or more different metal materials. Preferably, the layer has a multi-layered structure composed of different metal materials. Also preferably, each of the two or more different metal materials (13) contains at least copper.