Word: celling
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Dates: during 1990-1999
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Unlike an internal combustion engine, which burns its fuel so inefficiently that only 20 percent of the energy in gasoline gets used, a fuel cell can pull off at least 30 percent efficiency by reacting its special fuels--hydrogen and oxygen gas--electrochemically...
...efficiency isn't the only reason fuel cell advocates take the gadgets so seriously. In theory, unlike internal combustion engine--which spew greenhouse gases such as carbon dioxide into the atmosphere--a fuel cell's only "pollution" is pure water and electrical current...
...there is room for optimism and profit, as Daimler's $350 million investment in Ballard Power Systems, a Canadian manufacturer of high-tech fuel cell, would suggest...
...pollution levels of fuel cells, while seemingly their raison d'etre, is also their most damning flaw. A fuel cell is a highly efficient reactor, but is notoriously picky about what it consumes--only pure hydrogen and oxygen...
...example, Daimler plans to use methanol in its fuel cell cars and extract the hydrogen on-board. But experts have said that it will also be difficult to supply methanol to customers...