Method and device for operating a direct methanol fuel cell...

Details Method and device for operating a direct methanol fuel cell... Method and device for operating a direct methanol fuel cell...

H - Electricity

01

M

H01M 8/04 (2006.01) H01M 8/00 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2318253

The invention relates to a method for operating a direct methanol fuel cell. A cooling agent is vaporised in the fuel cell and a methanol-water mixture is vaporised in a vaporiser (V1). Excess heat from the fuel cell is used for vaporising the methanol-water mixture. Said vaporised methanol-water mixture is then conveyed to the anode chamber of the fuel cell. The invention also relates to a device with a direct methanol fuel cell. A cooling agent line is located in the direct methanol fuel cell and a vaporiser is provided. A fuel supply line delivers fuel to the vaporiser. Fuel which has vaporised in the vaporiser is then conveyed into the anode chamber of the fuel cell by a line. Elements are provided for transferring the excess heat from the fuel cell to the vaporiser.

L'invention concerne un procédé permettant d'actionner une pile à combustible méthanol directe. Selon ce procédé, un agent réfrigérant est vaporisé dans ladite pile à combustible. Un mélange méthanol-eau est vaporisé dans vaporisateur (V1). La chaleur excédentaire de la pile à combustible sert à vaporiser le mélange méthanol-eau. Le mélange méthanol-eau vaporisé est acheminé jusqu'à l'espace anodique de la pile à combustible. L'invention concerne en outre un dispositif équipé d'une pile à combustible méthanol directe. Une conduite d'agent réfrigérant se trouve dans ladite pile à combustible méthanol directe. Une conduite d'alimentation en combustible achemine du combustible dans le vaporisateur. Le combustible vaporisé est introduit dans l'espace anodique de la pile à combustible à l'aide d'une conduite. Il est prévu des éléments qui acheminent la chaleur excédentaire de la pile à combustible jusqu'au vaporisateur.

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