Fuel cell system having an energy source backup
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jul 13, 2004
Grant Date -
Feb 21, 2002
app pub date -
Mar 30, 2001
filing date -
Mar 31, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A fuel cell includes a fuel cell subsystem, a battery and a circuit. The fuel cell subsystem is adapted to furnish power to a load. The circuit is adapted to connect the battery to the load when the fuel cell subsystem substantially delays in responding to a change in the power.
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