OPERATING CONCEPT FOR DIRECT METHANOL FUEL CELLS

The inventive operating concept is provided for effecting the cold start of direct methanol fuel cells. According to the invention, the air is ousted fr om the cathodes by the residual gas located in the anodes after disconnecting t he load (during the preceding operating phase). In addition, cathod...

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Bibliographische Detailangaben
1. Verfasser:	MUND, KONRAD
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	The inventive operating concept is provided for effecting the cold start of direct methanol fuel cells. According to the invention, the air is ousted fr om the cathodes by the residual gas located in the anodes after disconnecting t he load (during the preceding operating phase). In addition, cathodic hydrogen is produced by feeding electric energy and is stored. For the start up, air is fed to the cathodes and hydrogen is fed to the anodes during the short-circu it operation. The operation is switched to methanol operation once the operatin g temperature is reached.