A fuel cell is an electrochemical conversion device. It produces electricity from various external quantities of fuel (on the anode side) and an oxidant (on the cathode side). These react in the presence of an electrolyte. Generally, the reactants flow in and reaction products flow out while the electrolyte remains in the cell. Fuel cells can operate virtually continuously as long as the necessary flows are maintained.
Fuel cells are different from batteries in that they consume reactant, which must be replenished, whereas batteries store electrical energy chemically in a closed system. Additionally, while the electrodes within a battery react and change as a battery is charged or discharged, a fuel cell's electrodes are catalytic and relatively stable.
Many combinations of fuel and oxidant are possible. A hydrogen cell uses hydrogen as fuel and oxygen as oxidant. Other fuels include hydrocarbons and alcohols. Other oxidants include air, chlorine and chlorine dioxide.[1]
domingo, 8 de junio de 2008
miércoles, 19 de marzo de 2008
fuel cell powered
Right around a month ago, we heard that Angstrom Power had managed to stuff some of its sophisticated hydrogen fuel cells into a MOTOSLVR L7. That prototype, friends, is what you see about. Unfortunately, we're no closer to realizing when this stuff will actually escape the proverbial beta stage, and for whatever it's worth, we're also no closer to feeling absolutely safe with one of these next to our melon (though existing alternatives don't have the greatest track record either).
Pedro Joaquin Sanchez Belmar Pedro Sanchez Belmar
Pedro Joaquin Sanchez Belmar Pedro Sanchez Belmar
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