Solid electrolyte fuel cell provided with a tight structure

Details Solid electrolyte fuel cell provided with a tight structure Solid electrolyte fuel cell provided with a tight structure

H - Electricity

01

M

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

Patent

CA 2560761

In order to improve a tightness between different cells (5) forming a planar geometry fuel cell (1), low-porous or nonporous areas (11) are arranged in an electrode layer (10) around a gas supply connection (2). The formation of an interlocking connection (18, 22) between a bipolar plate (20) and a three-layer ceramic element (10, 20) which forms a base cell (5) and makes it possible to prevent a gas mixtures is also disclosed.

Afin d'améliorer l'étanchéité entre les différentes cellules (5) constituant une pile à combustible (1) à géométrie plane, la présence de zones, peu ou pas poreuses (11) dans la couche d'électrode (10) autour des arrivées de gaz (2) est décrite. La création d'une liaison par emboîtement (18, 22) entre plaque bipolaire (20) et tricouche céramique (10, 20) constituant la cellule de base (5) est une autre possibilité décrite afin d'éviter les mélanges de gaz.

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