Apparatus and methods for sensor-less optimization of methanol concentration in a direct methanol fuel cell system
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United States of America Patent
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Nov 30, 2004
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app pub date -
Nov 9, 2001
filing date -
Nov 22, 2000
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Abstract
Apparatus and methods for regulating methanol concentration in a direct methanol fuel cell system without the need for a methanol concentration sensor. One or more operating characteristics of the fuel cell, such as the potential across the load, open circuit potential, potential at the anode proximate to the end of the fuel flow path or short circuit current of the fuel cell, are used to actively control the methanol concentration.
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