RECHARGEABLE METAL OXIDE HYDROGEN BATTERY

摘要

A rechargeable metal oxide-hydrogen battery which operates on the back-to-back electrode placement theory as opposed to single metal oxide-hydrogen couple cells is disclosed. Interconnecting of electrodes in series and construction of an electrode stack of series connected electrodes is utilized in one embodiment in place of bipolar construction to achieve high voltage operation. In a second embodiment, back-to-back construction is used for positive electrodes in a parallel arrangement of electrode connection to complete an operative cell. Individual cells are separated by a nonporous polymer separator which avoids the formation of electrolyte films which tend to electrochemically short each cell, yet are fashioned of light weight and volume to keep sizes to minimum dimensions. Interconnection of various cells is by means of bus bars coupled to electrode tabs. The entire stack of cells is held under compression by end plates and one or more tie rods, or, in the case of prismatic cell design, the stack can be held under compression by the walls of the battery container.