Fuel cell and method for manufacturing the same

Details Fuel cell and method for manufacturing the same Fuel cell and method for manufacturing the same

H - Electricity

01

M

H01M 8/02 (2006.01) H01M 4/86 (2006.01) H01M 4/88 (2006.01) H01M 8/12 (2006.01)

Patent

CA 2623302

A fuel battery cell that avoids gas leakage from gas channel; and a process for producing a fuel battery cell in which the above fuel battery cell can be produced on a massive scale at low cost and in which cracking at corners of the gas channel can be avoided. There is provided a fuel battery cell comprising support board (1) having gas channel (10) in the interior thereof and, sequentially superimposed thereon, first electrode (2), solid electrolyte (3) and second electrode (4), wherein the support board (1) is formed through piling multiple unsintered tapes containing powder of support board material one upon another and firing them and wherein fillet portions (S) are formed at corners of the gas channel (10) of the support board (1). In the fuel battery cell, the support board (1) is produced through the process of firing a support board forming body obtained by charging gas channel forming material (45) composed of an inorganic material for forming of fillet portions (S) at corners of gas channel (10) and a material scattered at firing in a cavity of gas channel configuration formed by the through holes of multiple unsintered tapes having through holes in the direction of thickness and containing powder of support board material, superimposed one upon another.

Pile à combustible évitant toute fuite de gaz d~un canal de gaz ; et processus de fabrication de pile à combustible, dans lequel la pile à combustible ci-dessus peut être fabriquée à grande échelle à faible coût et dans lequel on peut éviter tout fissurage au niveau des coins du canal de gaz. L~invention concerne une pile à combustible comprenant une carte support (1) ayant un canal de gaz (10) à l~intérieur de celle-ci et, superposées de manière séquentielle sur celle-ci, une première électrode (2), un électrolyte solide (3) et une seconde électrode (4), la carte support (1) étant formée par empilage de multiples bandes non frittées contenant de la poudre de matériau de carte support les unes au-dessus des autres et par cuisson de celles-ci et des portions de congé (S) étant formées au niveau des coins du canal de gaz (10) de la carte support (1). Dans la pile à combustible, la carte support (1) est fabriquée par cuisson d~un corps formant une carte support que l~on obtient en chargeant un matériau de formation de canal de gaz (45) composé d~un matériau inorganique permettant de former des portions de congé (S) au niveau des coins du canal de gaz (10) et un matériau dispersé lors de la cuisson dans une cavité de configuration de canal de gaz, formée par les trous traversants de multiples bandes non frittées, ayant des trous traversants dans le sens de l~épaisseur et contenant de la poudre de matériau de carte support, superposées les unes au dessus des autres.

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