Patent ID: 6528204
Filing Date: 2003-03-04
Classification: H01M,Y02E,Y02P

Abstract:
A lithium secondary battery comprising individual cells connected with one another, said cells comprising:a negative electrode comprising a negative electrode material and a negative current collector formed over said negative electrode material; a positive electrode comprising a positive electrode material and a positive current collector formed over said positive electrode material; a separator provided between the negative electrode and the positive electrode; and a non-aqueous electrolyte solution between the negative electrode and the positive electrode; wherein both the negative current collector and the positive current collector serve as a common current collector for every cell, and wherein the negative electrode material and the positive electrode material are absent from portions of said negative electrode and said positive electrode respectively, the negative current collector, the positive current collector and the separator being in contact with each other at said portions in unfolded position of said battery.