Patent ID: 6475674
Filing Date: 2002-11-05
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
A method of forming a shielded lead for a Li-ion and/or Li-ion polymer battery, comprising the steps of:a) forming a battery laminate by applying electrode films onto each side of a collector sheet of collector material, wherein said collector sheet is disposed between said electrode films with a portion of said collector sheet extending from edges of said electrode films; b) applying a strip of a protective laminate onto each side of said extending portions of said collector sheet, said strip being disposed along an edge of said electrode film where said collector sheet extends from said electrode film, said protective laminate comprised of an outer layer of a polymer film and an inner layer of an adhesive material for adhering said electrode film to said collector sheet; and c) stamping a current collector tab from said extending portion of said collector sheet, wherein said tab has an intermediate portion adjacent said electrode films having layers of said protective laminate on each side thereof and an end portion comprised of an exposed collector sheet.