Fuel cell assembly comprising an electrolyte reservoir

H - Electricity – 01 – M

Patent

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Details

H01M 8/04 (2006.01) H01M 8/24 (2006.01) H01M 8/14 (2006.01)

Patent

CA 2410005

The invention relates to a fuel-cell assembly comprising a number of fuel cells that are arranged in a stack. Each fuel cell contains an anode, a cathode and a porous electrolyte matrix arranged therebetween. An electrolyte reservoir, which compensates the electrolyte losses from the fuel cells is provided at the end, or in the vicinity of the end of the fuel cell stack, said electrolyte being transported to the individual fuel cells by electrical forces within the fuel cell stack. According to the invention, the electrolyte reservoir is configured as a supporting structure which forms hollow chambers that contain porous bodies for absorbing the electrolyte in their pores.

L'invention concerne un dispositif de cellules électrochimiques comportant une pluralité de cellules électrochimiques (12) logées dans une pile (10), lesdites cellules électrochimiques étant respectivement composées d'une anode (1), d'une cathode (2) et d'une matrice électrolytique poreuse (3) disposée entre l'anode et la cathode. Un réservoir d'électrolyte (11) est disposé sur l'extrémité ou à proximité de l'extrémité de la pile de cellules électrochimiques (10), ledit réservoir servant à compenser les pertes électrolytiques des cellules électrochimiques (12), et l'électrolyte étant transporté vers les cellules électrochimiques individuelles (12) au moyen de forces électriques à l'intérieur de la pile de cellules électrochimiques (10). Selon l'invention, ledit réservoir d'électrolyte (11) est constitué d'une structure porteuse formant des cavités contenant des éléments poreux destinés à recevoir l'électrolyte dans leurs pores.

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