The Chemical reaction of a battery . This is an example of a chemical reaction of a battery. About Fuel Cells. Fuel cells take the chemical energy of hydrogen and oxygen to produce water, electricity, and heat. This is a clean and quiet source of energy.
Individual cells produce a small voltage.
They are arranged in 'stacks' to provide the required level of power. Electrolytes that exhibit high conductivity of cations, mechanical stability , tolerance of high cell voltages , and reversible depostion and striping of lithium from the electrodes. Sloop S. E. PhD Thesis, Oregon State University 1996. The same Nichia LEDs are used in virtually all products on the market today, so the brightness of an LED product is relative to the number of LEDs used. They are built into a solid dome of acrylic and so are virtually unbreakable.