A fuel cell made with magnesium
An outfit called Revolutionary Design Products LLC was at CES with a novel fuel cell design it hopes to someday deploy in consumer products. The fuel cell is based on a magnesium-water chemistry. The small scooter shown at CES gets about 35 miles on one cartridge, says inventor Chris Goggin. A shoe-box-sized fuel cell can pack a kilowatt of power, he says. A key benefit of the design is that ordinary proton exchange membrane fuel cells, now under study for vehicular use, are expensive and generally incorporate rare-earth metals. The magnesium cell uses relatively cheap materials and its reaction can be throttled, says Goggin.
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