What material are the plates of a wet cell NiCad storage battery made of?
Official USCG Answer & Rule Citation
Correct Answer: Option C — nickel hydroxide and cadmium oxide
The active positive plate material in a wet-cell nickel-cadmium storage battery is nickel hydroxide, while the negative plate is constructed from cadmium oxide, suspended in an alkaline potassium hydroxide aqueous electrolyte solution.
100% Free & Open Access — No daily limits, paywalls, or gated answers on BrightMariner.