A NI/METAL HYDRIDE BATTERY OF BIPOLAR STACK DESIGN

摘要

A Ni/metal hydride battery of bipolar stack design, having a plurality of subcells accommodated in a gastight casing, a subcell having in each case two electrodes of different polarity and an electrolyte-impregnated separator, and an electrically conductive wall being positioned between electrodes of different polarity belonging to adjacent subcells, which connecting wall electronically connects these electrodes to one another and separates the electrolyte of one subcell from the electrolyte of an adjacent subcell, characterized in that all the subcells are connected to a common gas space (9), in that the electrolyte of a subcell is fixed in a defined quantity in the electrodes (6, 7) and the separator (5), in that the subcells are pressed onto one another by a continuously acting force, and in that the outer walls of the stack, which are designed as pressure plates, form the current-discharge poles (3, 4) and the gas space is at the centre of the stack.