Patent ID: 6436573
Filing Date: 2002-08-20
Classification: H01M,Y02E

Abstract:
A non-aqueous electrolyte secondary battery comprising a rechargeable positive electrode, a non-aqueous liquid electrolyte, and a negative electrode comprising a negative electrode material;in which: the negative electrode material comprises (1) a carbon material that is capable of absorbing and desorbing lithium and (2) a binder; the carbon material is a graphite material; the binder is at least one material selected from the group consisting of ethylene-acrylic acid copolymers, ethylene-acrylate copolymers, ethylene-methyl acrylic acid copolymers, ethylene-methacrylic acid copolymers, ethylene-methacrylate copolymers, and ethylene-methyl methacrylic acid copolymers; and; the ethylene content of the binder is in the range of 70-95%.