Question

true or false,fuel cells are energy storage devices

Answer 1

TRUE
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⬛ FUELS CELLS ARE ENERGY STORAGE CELLS

⬛ THESE CELLS CONVERT CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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Answer 2

Fuel cells are the devices that convert chemical energy into electrical energy. (Eg. Battery cells)

Inside this cells various chemical reactions happen for that reason electrical energy produces from this cells.

This cells only produce energy when it is connected with the device which need electrical energy but in another time it just stores the chemical energy for the future use.

So yes it is true that fuel cells are storage of energy.