The influence of calcium compounds on the behaviour of the nickel electrode

The nickel hydroxide electrode normally exhibits a poor change-acceptance which results from the competitive reactions of the oxidation of active material and the evolution of oxygen. The combined addition of cobalt and a calcium compound to the nickel hydroxide can improve appreciably the utilization and discharge potential of the active material. The action of the calcium additive is to increase the oxygen evolution potential, while the cobalt imparts good conductivity to the active material for both electrons and protons.