... device using air and industrial coal and gas. Though, it wasn't until 1932 that the first successful cell device was built from inventions of engineer Francis Bacon. Since the first successful fuel cell, a number of different types of fuel cells have been invented. They are usually classified ... , while at the same time an oxidant, oxygen from air, is fed to the cathode, the positive electrode. An electrochemical reaction, one that converts chemical energy into electrical energy, takes place at the electrodes to produce an electrical current. As one can see, a fuel cell functions simila...

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