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.
- Thermal runaway is a condition in which the current for a fully charged nickel-cadmium battery rises out of proportion to the impressed-voltage level.
- The nickel-cadmium battery had begun to swell.
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Syllabification: nick·el-cad·mi·um bat·ter·y
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