Solution:
Definition of Fuel Cell
A fuel cell is an electrochemical cell that
converts the chemical energy of a fuel (often
hydrogen) and an oxidizing agent (often
oxygen) into electricity through a pair of redox
reactions.
Usability of Fuel Cell
Fuel cells are cells that convert the energy of
the combustion of fuels like hydrogen,
methanol into electrical energy. Fuel cells run
continuously as long as reactants are supplied
and products are removed continuously.
- Primary batteries contain a limited amount of reactants and are discharged when the reactants have been consumed.
- Secondary batteries can be recharged but it takes a long time. Thus, the fuel cell has scalability advantages over the primary and secondary batteries.