Patent ID: 7985501

Claim:
A cap assembly, comprising: a top cap mounted as a base plate to an opening of a battery can, said battery can including a battery having an electrode assembly comprising a cathode, a separator and an anode; a cap subassembly including a protective circuit module mounted on the top cap; and an injection molded material coupling the top cap and the cap subassembly into a single integrated cap assembly in a state that the injection molded material surrounds the protective circuit module and that the cap subassembly is integrally mounted on one side of the top cap including two electrode terminals such that the protective circuit module is electrically connected to the two electrode terminals of the top cap, wherein at least one of the protective circuit module and the top cap has at least one guide groove formed thereon and configured to prevent the protective circuit module and the top cap from being misaligned within a mold during an injection molding process, and at least one connecting member is coupled to the at least one guide groove to connect the protective circuit module and the top cap, and wherein the at least one guide groove comprises first and second guide grooves, said first guide groove having a perforation shape and said second guide groove having an indentation shape.