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cathode
One of two electrodes in a fuel cell or battery. The cathode, the positive post of the fuel cell, has channels etched into it that distribute the oxygen to the surface of the catalyst. It also conducts the electrons back from the external circuit to the catalyst, where they can recombine with the hydrogen ions and oxygen to form water.
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- Part of Speech: noun
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- Industry/Domain: Automotive
- Category: Vehicle equipment
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