US Patent 7585581 Micro fuel cell architecture
Patent 7585581 was granted and assigned to Ultracell (company) on September, 2009 by the United States Patent and Trademark Office.
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The present invention relates to fuel cells and components used within a fuel cell. Heat transfer appendages are described that improve fuel cell thermal management. Each heat transfer appendage is arranged on an external portion of a bi-polar plate and permits conductive heat transfer between inner portions of the bi-polar plate and outer portions of the bi-polar plate proximate to the appendage. The heat transfer appendage may be used for heating or cooling inner portions of a fuel cell stack. Improved thermal management provided by cooling the heat transfer appendages also permits new channel field designs that distribute the reactant gases to a membrane electrode assembly. Flow buffers are described that improve delivery of reactant gases and removal of reaction products. Single plate bi-polar plates may also include staggered channel designs that reduce the thickness of the single plate.
US Patent 07585581 Micro fuel cell architecture US Patent 7585581 Micro fuel cell architecture
US Patent 07585581 Micro fuel cell architecture
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