INTERCONNECTION ASSEMBLIES AND METHODS FOR FORMING THE INTERCONNECTION ASSEMBLIES IN A BATTERY MODULE

摘要

Interconnection assemblies and methods are provided. An interconnection assembly includes a first cell tab constructed of a first metal, and a second cell tab disposed against the first cell tab. The second cell tab is constructed of a second metal having a hardness greater than the first metal. The assembly further includes an interconnect member disposed against the second cell tab. The assembly further includes a weld assisting layer disposed against the first cell tab such that the first and second cell tabs are disposed between the weld assisting layer and the interconnect member.

主权项

1. A method of forming an interconnection assembly in a battery module, comprising:
providing a first cell tab of a first battery cell, a second cell tab of a second battery cell, an interconnect member, and a weld assisting layer, the first cell tab being constructed of a first metal, the second cell tab being constructed of a second metal, the second metal having a hardness greater than a hardness of the first metal; disposing the second cell tab on and against the first cell tab; disposing the interconnect member on and against the second cell tab; disposing the weld assisting layer on and against the first cell tab such that the first and second cell tabs are disposed between the weld assisting layer and the interconnect member; and ultrasonically welding together the first and second cell tabs, the interconnect member, and the weld assisting layer utilizing an ultrasonic welding machine.