What do you understand by the terms: fuel-cell
Fuel cells: Fuel cells are devices for producing electricity from fuel in the presence of an electrolyte. Dihydrogen can be used as a fuel in these cells. It is preferred over other fuels because it is eco-friendly and releases greater energy per unit mass of fuel as compared to gasoline and other fuels.
Fuel-Cell: It is a cell which converts chemical energy of fuel directly into electrical energy.