High performance fuel cells

Details High performance fuel cells High performance fuel cells

H - Electricity

01

M

H01M 8/00 (2006.01) H01M 8/02 (2006.01) H01M 8/04 (2006.01)

Patent

CA 2478438

Electrode plates having a plurality of open-faced channels formed in at least one surface thereof are provided. The inventive electrode plates, which are contemplated for use in a variety of fuel cell types, preferably serve to increase the degree and rate of heat transfer within a fuel cell, thereby extending the cell's practical operating range and useful life. High performance fuel cells and fuel cell stacks constructed of these inventive electrode plates are also provided, as well as, acid fuel cells employing (i) an absorptive separator that absorbs and retains an acid or mixed acid electrolyte, or (ii) a non-absorptive separator that retains an acid or mixed acid gel electrolyte.

L'invention concerne des plaques d'électrodes présentant une pluralité de canaux à jour, formés dans au moins une de leur surface. Lesdites plaques d'électrodes destinées à être utilisées dans une pluralité de type de piles à combustible servent, de préférence, à augmenter le degré et le taux de transfert de chaleur à l'intérieur d'une pile à combustible, tout en élargissant la gamme de fonctionnement pratique et en augmentant la vie de ladite pile. L'invention concerne également des piles à combustibles hautes performances et des empilement de piles à combustibles comportant lesdites plaques d'électrodes ainsi que des piles à combustible acide utilisant (i) un séparateur absorbant qui absorbe et retient un électrolyte d'acide ou d'acide mélangé, ou (ii) un séparateur non absorbant qui retient un électrolyte d'acide ou d'acide mélangé.

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