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Ni cadmium battery working process
Accepted Answer
The Ni-Cd battery is a rechargeable electrochemical battery containing nickel (Ni) and cadmium (Cd). The positive electrode is made of nickel hydroxide (Ni(OH)2), while the negative electrode is made of cadmium (Cd). The electrolyte is potassium hydroxide (KOH).
During discharge, the nickel hydroxide is reduced to nickel oxide (NiO) and the cadmium is oxidized to cadmium hydroxide (Cd(OH)2). The overall reaction is:
Ni(OH)2 + Cd → NiO + Cd(OH)2 + H2O
During charging, the reaction is reversed and the nickel oxide is reduced back to nickel hydroxide and the cadmium hydroxide is oxidized back to cadmium.
Ni-Cd batteries are known for their long life and high discharge rates. They are often used in applications where high power is required, such as power tools and electric vehicles.
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