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... to consume hydrogen directly, the only products are electricity, water and heat. Fuel Cell Origins: In 1839, Sir William Grove, a British physicist, first discovered the principle of the fuel cell. Grove utilized four large cells, each containing hydrogen and oxygen, to produce electric power which was then used to split the water in the smaller upper cell into hydrogen and oxygen. However, it was Ludwig Mond and Charles Langer first used the term "fuel cell" in 1889. It was not until 1932 that Francis Bacon developed the first successful fuel cell. NECAR3, the first commercially available fuel cell vehicle was introduced by Diamler-Benz of Germany. General Motors, Ford and Ballard Power Systems(Canada) too are putting up stiff resistance. Types of Fuel Cells: Broadly Fuel Cells are classified as: 1. Polymer Exchange Membrane Fuel Cell (PEMFC) 2. Molten Carbonate Fuel Cell (MCFC) 3. Solid Oxide Fuel Cell (SOFC) 4. Phosphoric Acid Fuel Cell (PAFC) 5. Direct ...