发明授权
- 专利标题: Mitigation of membrane degradation by multilayer electrode
- 专利标题(中): 通过多层电极减少膜降解
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申请号: US11828895申请日: 2007-07-26
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公开(公告)号: US08206872B2公开(公告)日: 2012-06-26
- 发明人: Annette M. Brenner , Hubert A. Gasteiger , Wenbin Gu , James Leistra , Brian A. Litteer , Han Liu , Susan G. Yan , Jingxin Zhang
- 申请人: Annette M. Brenner , Hubert A. Gasteiger , Wenbin Gu , James Leistra , Brian A. Litteer , Han Liu , Susan G. Yan , Jingxin Zhang
- 申请人地址: US MI Detroit
- 专利权人: GM Global Technology Operations LLC
- 当前专利权人: GM Global Technology Operations LLC
- 当前专利权人地址: US MI Detroit
- 代理机构: Miller IP Group, PLC
- 代理商 John A. Miller
- 主分类号: H01M8/10
- IPC分类号: H01M8/10
摘要:
An MEA for a fuel cell that employs multiple catalyst layers to reduce the hydrogen and/or oxygen partial pressure at the membrane so as to reduce the fluoride release rate from the membrane and reduce membrane degradation. An anode side multi-layer catalyst configuration is positioned at the anode side of the MEA membrane. The anode side multi-layer catalyst configuration includes an anode side under layer positioned against the membrane and including a catalyst, an anode side middle layer positioned against the anode side under layer and not including a catalyst and an anode side catalyst layer positioned against the anode side middle layer and opposite to the anode side under layer and including a catalyst, where the amount of catalyst in the anode side catalyst layer is greater than the amount of catalyst in the anode side under layer.
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