发明名称 |
Operational method for a simplified fuel cell system |
摘要 |
A system and method for reducing the corrosive effects of an air/hydrogen front in a fuel cell stack. The method includes shutting down the fuel cell stack and then initiating a hydrogen sustaining process where hydrogen is periodically injected into an anode side of the fuel cell stack while the stack is shut down for a predetermined period of time. The method determines that the hydrogen sustaining process has ended, and then purges the anode side and a cathode side of the fuel cell stack with air after the hydrogen sustaining process has ended and the stack is still shut-down. |
申请公布号 |
US9537160(B2) |
申请公布日期 |
2017.01.03 |
申请号 |
US201213397458 |
申请日期 |
2012.02.15 |
申请人 |
GM Global Technology Operations LLC |
发明人 |
Goebel Steven G. |
分类号 |
H01M8/04;H01M8/06;H01M8/24 |
主分类号 |
H01M8/04 |
代理机构 |
Miller IP Group, PLC |
代理人 |
Miller John A.;Miller IP Group, PLC |
主权项 |
1. A method for purging a fuel cell stack at stack shut-down, said method comprising:
shutting down the fuel cell stack; initiating a hydrogen sustaining process where fresh hydrogen is periodically injected into an anode side of the fuel cell stack while the stack is shut-down for a predetermined period of time; determining that the hydrogen sustaining process has ended; and purging the anode side and a cathode side of the fuel cell stack with air after the hydrogen sustaining process has ended and the stack is still shut-down. |
地址 |
Detroit MI US |