Electrochemical operations consist essentially of two basic types: electrolysis and conversion of chemical energy to electricity. Electrolysis is a kind of heterogeneous catalytic reaction accompanied by the transfer of electric energy. On the other hand, a battery supplies electricity to an external load by means of conversion of internal chemical energy into electric energy. Certain batteries are also able to convert electric energy into chemical energy when electricity is supplied and can store it until an external load is applied.
KeywordsFuel Cell Electric Energy Positive Electrode Manganese Dioxide Heterogeneous Catalytic Reaction
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