Patent ID: 9741993
Date: 2017-08-22
CPC Classifications: A61N,H01G,H01M,Y02E,Y02P

Claim:
1. A battery terminal comprising: a foil stack comprising a plurality of free end portions of foil tabs stacked along a stacking direction and electrically coupled to a plurality of plate electrodes, the foil stack defining a free end side, a first stack surface, a second stack surface opposite the first stack surface, and a foil stack width along the stacking direction between the first stack surface and the second stack surface; a first side element defining a first inner surface, a first outer surface opposite the first inner surface, a first width between the first inner and outer surfaces, and a first height profile varying along the first width between a top and a bottom of the first side element, wherein the first inner surface is coupled to the first stack surface, wherein the first height profile defines a greatest height of the first side element adjacent the first inner surface; a second side element defining a second inner surface, a second outer surface opposing the second inner surface, a second width between the second inner and outer surfaces, and a second height profile varying along the second width between a top and a bottom of the second side element, wherein the second inner surface is coupled to the second stack surface, wherein the second height profile defines a greatest height of the second side element adjacent the second inner surface; and a weld joint at the free end side of the foil stack coupling the plurality of free end portions, the first side element, and the second side element, wherein the first and second height profiles each include a taper along the first and second widths, wherein each taper narrows in a direction from the respective inner surface to the respective outer surface.