单词 | nickel-cadmium battery |
释义 | nickel-cadmium batterynoun A storage battery with a negative electrode made of cadmium, a positive electrode of nickel oxide, and a solution of potassium hydroxide as the electrolyte. Nickel-cadmium batteries have the advantage of an airtight battery container, which prevents the corrosive electrolyte from leaking.In 1995, 75 percent of the cadmium found in the municipal waste stream came from nickel-cadmium batteries, according to the Environmental Protection Agency....
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