Apparatus for converting chemical energy of fuel into...

H - Electricity – 01 – M

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H01M 8/24 (2006.01) H01M 8/02 (2006.01) H01M 8/06 (2006.01) H01M 8/10 (2006.01) H01M 8/12 (2006.01)

Patent

CA 2081779

An apparatus for converting chemical energy of a fuel into electrical energy includes a plurality of high-temperature fuel cells, which extend parallel to each other, with each fuel cell having an oxygen electrode comprising SrO-doped Mn oxides and having a Cr surface layer, and fuel electrodes comprising Ni/ZrO2 cermet and having Ni surface layers, a separating plate constructed as a hollow body for guiding, distributing and collecting gaseous media, and a highly elastic constructional element in the form of a gas-permeable intermediate layer, which acts as a high-temperature spring between the separating plate and the current collectors.

La présente divulgation concerne un appareil qui permet de convertir l'énergie chimique d'un combustible en énergie électrique. Cet appareil est muni d'un certain nombre de piles à combustible à haute température disposées en parallèle, chacune des piles comportant une électrode à oxygène à base d'oxydes de Mn dopés au Sr-O recouverte de Cr, ainsi que d'électrodes à combustible à base de cermets de Ni/ZrO2 recouvertes de Ni, d'une cloison de séparation creuse permettant de guider, de distribuer et de recueillir les milieux gazeux, et d'un élément de construction très élastique se présentant sous la forme d'une couche intermédiaire perméable aux gaz jouant à haute température le rôle d'un ressort entre la cloison de séparation et les collecteurs de courant.

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