Patent ID: 6555264
Filing Date: 2003-04-29
Classification: H01M,Y02E,Y02P

Abstract:
A battery module constituted by coupling a plurality rechargeable batteries together, comprising:a plurality of prismatic cell cases having short lateral walls and long lateral walls coupled together, with adjacent short lateral walls being unitarily formed, thereby constituting an integral battery case; and a single lid member for integrally closing upper open ends of the plurality of prismatic cell cases, wherein each of the cell cases accommodates therein a group of electrodes comprising a group of positive electrode plates and a group of negative electrode plates stacked alternately upon one another parallel to the long lateral walls of the cell cases with intervening separators therebetween, thereby constituting rechargeable batteries respectively, and neighboring rechargeable batteries are connected in series at their opposite lateral ends with each other, within said integral battery case.