BATTERY PACK AND LEAD ELECTRODE FOR THE BATTERY PACK

摘要

PURPOSE: A battery pack is provided to effectively utilize a narrow inner space and to be easily welded by forming an electrode connection part and a terminal connection part with one layered metal. CONSTITUTION: A battery pack comprises a battery cell; a protection circuit module which is electrically connected to the battery cell; a case accommodating the battery cell; and a protection circuit module and a lead electrode which is electrically connected to between the battery cells. The lead electrode comprises end connection parts which are connected to the cells or the protection circuit module; and a body part which is connected to the end connection parts and is thicker than the end connection parts.