Prismatic battery cells, batteries with prismatic battery cells and methods of making same

Abstract

A prismatic battery cell including a positive electrode group and a negative electrode group which are connected respectively to a positive current collector and a negative current collector, each said positive electrode group and said negative electrode group respectively including a plurality of positive and negative electrode plates, said positive and negative electrode groups are assembled so that positive and negative electrode plates are alternately stacked with separators interposed between adjacent positive and negative electrodes, wherein the electrode plates of an electrode group being bundled together and welded to the corresponding current collector, the welding being generally along the bundled portion of the electrode group and at least on the surface of said current collector away from said electrode group.

Dependencies are inferred from the claim text.