Sealed nickel cadmium battery capable of withstanding high rate overdischarge

摘要

Excessive hydrogen pressure buildup in a sealed nickel cadmium cell during overdischarge of the cell is avoided by adsorption of the evolved hydrogen on an exposed catalyst (c) embodied in the negative cadmium electrode and combination of the adsorbed hydrogen and the active medium of the negative electrode according to the reactions H2 + (c) -> 2H(c) 2H(c) + Cd(OH)2 -> 2H2O + Cd