Invention Grant
- Patent Title: Fuel cell with spatially non-homogeneous ionic membrane
- Patent Title (中): 燃料电池与空间非均匀离子膜
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Application No.: US12549885Application Date: 2009-08-28
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Publication No.: US08354201B2Publication Date: 2013-01-15
- Inventor: Sean M MacKinnon , Timothy J. Fuller , Annette M. Brenner
- Applicant: Sean M MacKinnon , Timothy J. Fuller , Annette M. Brenner
- 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: Brooks Kushman P.C.
- Main IPC: H01M8/10
- IPC: H01M8/10 ; H01M2/16 ; C08F214/14

Abstract:
A fuel cell includes a first flow field plate defining at least one flow field channel. A cathode catalyst layer is disposed over at least a portion of the first flow field plate. A polymeric ion conducting membrane is disposed over cathode catalyst layer. An anode catalyst layer is disposed over the polymeric ion conducting membrane. Finally, a second flow field plate defining at least one flow field channel is disposed over the anode catalyst layer. The polymeric ion conducting membrane extends beyond the cathode catalyst layer and the anode catalyst layer such that the fuel cell has at least one peripheral region with the polymeric catalyst layer interposed between first flow field plate and the second flow field plate without the cathode catalyst layer and the anode catalyst layer.
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