Invention Grant
- Patent Title: Mitigation of membrane degradation by multilayer electrode
- Patent Title (中): 通过多层电极减少膜降解
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Application No.: US11828895Application Date: 2007-07-26
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Publication No.: US08206872B2Publication Date: 2012-06-26
- Inventor: Annette M. Brenner , Hubert A. Gasteiger , Wenbin Gu , James Leistra , Brian A. Litteer , Han Liu , Susan G. Yan , Jingxin Zhang
- Applicant: Annette M. Brenner , Hubert A. Gasteiger , Wenbin Gu , James Leistra , Brian A. Litteer , Han Liu , Susan G. Yan , Jingxin Zhang
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Agency: Miller IP Group, PLC
- Agent John A. Miller
- Main IPC: H01M8/10
- IPC: H01M8/10

Abstract:
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.
Public/Granted literature
- US20090029235A1 Mitigation of Membrane Degradation by Multilayer Electrode Public/Granted day:2009-01-29
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