SEALED NICKEL-CADMIUM STORAGE CELL Russian patent published in 2007 - IPC H01M10/34 

FIELD: chemical current supplies.

SUBSTANCE: proposed nickel-cadmium storage cell has jar, lid, positive nickel electrodes, negative cadmium electrodes characterized in higher charging capacity compared with that of nickel electrodes, separator, alkali electrolyte, and activated-carbon oxygen electrode electrically connected to cadmium electrode; oxygen electrode is built of two or more lengthwise arranged parts; each part has two plates with fibrous water-absorbing material in-between, and these parts are separated from one another by insulating lattice members; thickness of fibrous water-absorbing material amounts to 0.25-1.0 and that of lattice member, to 1.0-4.0 of that of oxygen electrode plate part; oxygen electrode is disposed in top part of cell and 0.1-0.8 of its bottom-part height is immersed in electrolyte; charging capacity of cadmium electrode is higher than that of nickel electrode by 75 to 100%.

EFFECT: enhanced efficiency of oxygen absorption by activated carbon electrode, reduced pressure within jar.

2 cl, 7 dwg