Nickel foam and felt-based anode for solid oxide fuel cells

Details Nickel foam and felt-based anode for solid oxide fuel cells Nickel foam and felt-based anode for solid oxide fuel cells

H - Electricity

01

M

H01M 4/86 (2006.01) H01M 4/88 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2560768

A solid oxide fuel cell anode is comprised of a nickel foam or nickel felt substrate. Ceramic material such as yttria stabilized zirconia or the like is entrained within the pores of the substrate. The resulting anode achieves excellent conductivity, strength and low coefficient of thermal expansion characteristics while effectively reducing the overall quantity of nickel contained in the fuel cell. Equivalent or better fuel cell anode characteristics result in the present invention as compared to conventional anode designs while simultaneously employing significantly less nickel.

Cette invention se rapporte à une anode pour piles à combustible à oxyde solide, qui est constituée par un substrat de feutre de nickel ou de mousse de nickel. Une matière céramique, telle que de la zircone stabilisée par de l'oxyde d'yttrium ou similaire, est entraînée dans les pores du substrat. L'anode qui en résulte présente d'excellentes caractéristiques de conductivité, de résistance et de faible coefficient d'expansion thermique, tout en réduisant efficacement la quantité globale de nickel contenue dans la pile à combustible. Cette invention permet d'obtenir des caractéristiques d'anode de pile à combustible équivalentes ou supérieures par rapport aux conceptions d'anodes traditionnelles, tout en utilisant simultanément beaucoup moins de nickel.

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