Process for spot-welding a flexible welding board to a battery cell.

摘要

Process for spot-welding a flexible bare backed welding board to at least one and preferably a plurality battery cells to form a battery pack, such as a NiCad battery pack. The flexible bare backed welding board is a nickel or other metal alloy material, laminated to a polyester film by a co-extruded or otherwise applied adhesive. The spot-welding is accomplished by one spot-welder, and preferably two spot-welders, which spot-weld in alternating time intervals so as to assure electrical and electromechanical contact with each end of the battery cells by the nickel alloy material. The spot-welding is by DC current and voltage or alternatively can be AC welded. The electrodes are small enough to form a configuration between the flexible circuit and the end of the battery cell. Three spot-welding electrodes would assume a triangular configuration. Four spot-welding electrodes would form a rectangular configuration.