Patent ID: 6727021
Filing Date: 2004-04-27
Classification: H01M,Y02E,Y02P

Abstract:
A lithium ion secondary battery comprising:a plurality of electrode laminates formed by arranging a separator holding an electrolyte, a first electrode and a second electrode, wherein the electrodes comprise four distinct components of (a) an active material, (b) an electronic conductive material in contact with the active material, (c) a binder, and (d an electronic conductive current collector jointed with the active material and the electronic conductive material with the binder, wherein the electronic conductive material of at least one of the electrodes comprises a conductive filler and a polymer having a softening temperature of at most 150Â° C., and wherein said plurality of electrode laminates are formed by arranging the first electrode, the second electrode and the separator such that the separator is interposed between the first electrode and the second electrode, and jointing at least one of the electrodes and the separator with an adhesive agent.