Patent ID: 6673129
Filing Date: 2004-01-06
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
A method of manufacturing a lithium battery comprising a stack of a negative electrode, a separator, and a positive electrode, which method comprises the steps of applying negative electrode material on a negative current collector so as to form the negative electrode, applying positive electrode material on a positive current collector so as to form the positive electrode, and arranging a separator between the negative electrode and the positive electrode, and which method further comprises the following steps:a) producing a pattern of holes in the negative electrode; b) producing a pattern of holes in the positive electrode; c) applying a polymeric material on at least one side of the stack and subjecting the stack and the polymeric material to heat and pressure, so that the polymeric material penetrates the holes, whereby the negative electrode, the positive electrode and the separator are stuck and pressed together, wherein prior to said subjecting act, the polymeric material comprises bulges which are partially located in the holes of at least one of the negative electrode and the positive electrode and do not completely fill the holes of at least one of the negative electrode and the positive electrode.