发明名称 |
METHOD FOR RECOGNITION OF A LEAK IN A FUEL CELL |
摘要 |
A leak in the membrane of a fuel cell leads to an uncontrolled and heat-generating reaction which can destroy the fuel cell. A method for recognition of a leak in a fuel cell is disclosed which leads to an automatic closing down of the fuel cell without a safety device. The anode gas chamber of the fuel cell is treated with a first test gas and the cathode gas chamber of the fuel cell is treated with a second test gas. The cell voltage of the fuel cell measured and the change with time in the cell voltage is monitored. A gas with a hydrogen content of 0.1 to 20 vol. % is used as first test gas and a gas with an oxygen content of 0.1 to 30 vol. % is used as second test gas. |
申请公布号 |
EP1340280(B1) |
申请公布日期 |
2005.01.19 |
申请号 |
EP20010999979 |
申请日期 |
2001.11.27 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
MATTEJAT, ARNO;VOITLEIN, OTTMAR |
分类号 |
G01M3/22;H01M8/04;H01M8/10 |
主分类号 |
G01M3/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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