Invention Grant
- Patent Title: Membrane electrode assembly having low surface ionomer concentration
- Patent Title (中): 具有低表面离聚物浓度的膜电极组件
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Application No.: US12015929Application Date: 2008-01-17
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Publication No.: US08507151B2Publication Date: 2013-08-13
- Inventor: Michael K. Budinski
- Applicant: Michael K. Budinski
- 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: BrooksGroup
- Main IPC: H01M4/02
- IPC: H01M4/02 ; H01M4/36 ; H01M8/00

Abstract:
A membrane electrode assembly (MEA) comprises a polymer electrolyte membrane having at least one electrode layer on each of the opposing sides of the membrane. The electrode layer comprises a catalyst, an electrically conductive particulate material and an ionomer binder. The ionomer binder concentration on the exterior surface of the MEA is lower than the ionomer binder concentration near the electrode membrane interface. The electrode layer is formed by casting and drying a solvent ink layer between a nonporous release surface and a porous releasable decal.
Public/Granted literature
- US20090186251A1 MEMBRANE ELECTRODE ASSEMBLY HAVING LOW SURFACE IONOMER CONCENTRATION Public/Granted day:2009-07-23
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