Moving forward with fuel cells

What is a fuel cell. Basically, it's an electrochemical device in which the chemical energy of a fuel, such as hydrogen, is converted directly and efficiently into electricity. A fuel cell has three major parts: an anode (negative electrode), an electrolyte (an ion conduction material) and a cathode (positive electrode). Unlike the more familiar dry cell and lead-acid batteries in which the chemical energy source is contained within the battery, a fuel cell depends on an outside supply of fuel and oxidant fed to it as needed to produce energy. In most fuel cells being developed today, hydrogen is used as the fuel and oxygen or air is used as the oxidant.