发明申请
- 专利标题： METHOD OF MITIGATING FUEL CELL DEGRADATION DUE TO STARTUP AND SHUTDOWN VIA HYDROGEN/NITROGEN STORAGE
- 专利标题（中）： 通过氢/氮储存启动和关闭时减少燃料电池降解的方法
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申请号： US11612120申请日： 2006-12-18
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公开(公告)号： US20080145716A1公开(公告)日： 2008-06-19
- 发明人: Paul Taichiang Yu , Frederick T. Wagner , Glenn W. Skala , Balsu Lakshmanan , John P. Salvador
- 申请人： Paul Taichiang Yu , Frederick T. Wagner , Glenn W. Skala , Balsu Lakshmanan , John P. Salvador
- 申请人地址： US MI Detroit
- 专利权人： GM Global Technology Operations, Inc.
- 当前专利权人： GM Global Technology Operations, Inc.
- 当前专利权人地址： US MI Detroit
- 主分类号： H01M8/02
- IPC分类号： H01M8/02
摘要：
A method of operating the fuel cell stack having an anode side and a cathode side by flowing hydrogen into the anode side and flowing air into the cathode side. The fuel cell produces electricity that is used to operate a primary electrical device. To shut down the stack in one embodiment, the primary electrical device is disconnected from the stack. The flow of air into the cathode side is stopped and positive hydrogen pressure is maintained on the anode side. The fuel cell stack is shorted and oxygen in the cathode side is allowed to be consumed by hydrogen. The inlet and outlet valves of the anode and the cathode sides are closed. Thereafter, the flow of hydrogen into the anode side is stopped and the flow of exhaust from the cathode side is stopped.
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