and some water as byproducts. The borohydride reactions are noted directly below: At the cathode: 2O2 + 4H2O + 8e- => 8OH- At the anode: NaBH4 + 8OH- => NaBO2 + 6H2O + 8e- Medis says it uses a mix of alcohol and sodium borohydride. The electrolyte is potassium...

1899. He used nickel for the positive electrode, and cadmium for the negative electrode. A potassium hydroxide solution served as its electrolyte. The alkaline nature of that electrolyte also provided the inspiration for this battery's name or type designation....