Beginning of Essay
Ballard Power System is the world leader in developing and commercializing proton exchange membrane power systems. At the heart of this corporation is the Ballard , a propriety zero-emission engine that converts natural gas, methanol, or hydrogen fuel directly in ....

Middle of Essay
.... How the PEM Works: A is an electrochemical device that produces electricity silently, without combustion. Hydrogen fuel, which is one of the most abundant chemicals in the universe, and oxygen from the air are electrochemically combined in the to produce electricity. Heat and pure water vapour are the only by-products of the . The Ballard Fuel Cell is made up of two electrodes, the anode and the cathode, separated by a polymer membrane electrolyte. Both the anode and the cathode are coated in a thin layer of platinum catalyst. At the anode, hydrogen fuel is changed into free electrons and protons. The free electrons are sent in the form of us ....