OXYGEN GETTERS FOR ANODE PROTECTION IN A SOLID-OXIDE FUEL CELL STACK
摘要
In a fuel cell assembly (12), nickel-based anodes are readily oxidized when exposed to oxygen as may happen through atmospheric invasion of the assembly during cooldown following shutdown of the assembly. Repeated anode oxidation and reduction can be destructive of the anodes, leading to cracking and failure. To prevent such oxygen migration, oxygen getter devices (124, 126) containing oxygen-gettering material (134) such as metallic nickel are provided in the fuel passageways leading to and from the anodes. Oxidation of the oxygen-gettering material is readily reversed through reduction by fuel when the assembly is restarted.
申请公布号
WO2004001885(A1)
申请公布日期
2003.12.31
申请号
WO2003US17496
申请日期
2003.06.03
申请人
DELPHI TECHNOLOGIES, INC.
发明人
ENGLAND, DIANE, M.;HALTINER, KARL, JACOB, JR.;KELLY, SEAN, MICHAEL;FAVILLE, MICHAEL, THOMAS