Patent ID: 6572998
Filing Date: 2003-06-03
Classification: H01M,Y02E,Y02P

Abstract:
A non-aqueous electrolyte secondary battery comprising:a battery can which accommodates an electrode device and non-aqueous electrolyte, wherein a. a largest opening of said battery can is hermetically sealed by a battery cover incorporating a terminal, wherein said battery cover has a safety unit which outwardly releases the internal pressure of said battery, and wherein said battery cover has a separate electrolyte injecting opening through which the electrolyte is injected; and b. said electrode device comprises a plurality of positive electrodes and a plurality negative electrodes, wherein each of said positive electrodes comprise a positive electrode active material selected from the group consisting of a composite metal oxide comprising lithium as LiMO2, wherein M is selected from the group consisting of Co, Ni, Mn, Fe, Al, V, Ti, and a transition metal; wherein each of said negative electrode comprise a negative electrode material selected from the group consisting of iron oxide, ruthenium oxide, molybdenum oxide, tungsten oxide, titanium oxide, and a carbon material which permits doping/dedoping of lithium and lithium alloys; and wherein said electrode device is formed into a laminate constituted by laminating the positive electrodes and negative electrodes substantially in parallel with said battery cover through a plurality of separators.