Fuel cell and method for its production

H - Electricity – 01 – M

Patent

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Details

H01M 8/14 (2006.01) B05D 5/12 (2006.01) H01M 2/08 (2006.01) H01M 8/00 (2006.01) H01M 8/02 (2006.01)

Patent

CA 2484237

A fuel cell, in particular a molten carbonate fuel cell and a method for production thereof are disclosed. The anode (1) and the cathode (2) are each provided on current collectors (4a, 4b), which electrically contact with the relevant electrode (1, 2) and form gas flow paths (17, 18) for a fuel gas or a cathode gas, whereby the anode-side current collector (4a) together with the anode (1) and the cathode-side current collector (4b) together with the cathode (2) form an anode half cell (11) and a cathode half cell (12) respectively. According to the invention, the electrolyte matrix (3) or electrolyte layer is applied to one of the half cells (11, 12) and sealing elements (21, 22) are provided on the sides of the current collectors (4a, 4b) laterally surrounding the above in a sealing manner, whereby an insulating layer (31) electrically insulates each sealing element (21, 22) of a half cell (11) with respect to the other half cell (12).

L'invention concerne une pile à combustible, en particulier une pile à combustible à carbonate fondu, ainsi qu'un procédé de production d'une pile de ce type. L'anode (1) et la cathode (2) sont placées sur des collecteurs de courant respectifs (4a, 4b), qui mettent les électrodes respectives (1, 2) en contact électrique et forment des voies d'écoulement de flux gazeux (17, 18) pour un gaz combustible ou un gaz de cathode, le collecteur de courant côté anode (4a) formant avec l'anode (1) une demi-cellule anode (11) et le collecteur de courant côté cathode (4b) formant avec la cathode (2) une demi-cellule cathode (12). Selon la présente invention, la matrice d'électrolyte (3) ou couche d'électrolyte est appliquée sur une des demi-cellules (11, 12) et des éléments d'étanchéité (21, 22) entourent les côtés des collecteurs de courant (4a, 4b) de manière à les rendre étanche, une couche isolante (31) isolant électriquement l'élément d'étanchéité (21, 22) d'une demi-cellule (11) par rapport à l'autre demi-cellule (12).

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