Invention Grant
US08206877B2 Membrane electrode assembly for fuel cell, fuel cell, and fuel cell system
失效
用于燃料电池，燃料电池和燃料电池系统的膜电极组件
- Patent Title: Membrane electrode assembly for fuel cell, fuel cell, and fuel cell system
- Patent Title (中): 用于燃料电池，燃料电池和燃料电池系统的膜电极组件
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Application No.: US12744856Application Date: 2008-11-25
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Publication No.: US08206877B2Publication Date: 2012-06-26
- Inventor: Yosuke Koike , Gang Xie , Yoshito Endo
- Applicant: Yosuke Koike , Gang Xie , Yoshito Endo
- Applicant Address: JP Toyota-shi
- Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee Address: JP Toyota-shi
- Agency: Kenyon & Kenyon LLP
- Priority: JP2007-306254 20071127
- International Application: PCT/IB2008/003205 WO 20081125
- International Announcement: WO2009/068958 WO 20090604
- Main IPC: H01M4/86
- IPC: H01M4/86 ; H01M4/88 ; H01M4/90 ; H01M4/92
Abstract:
A membrane electrode assembly includes an ion conducting membrane; an anode catalyst layer arranged on one side of the ion conducting membrane; a cathode catalyst layer arranged on the other side of the ion conducting membrane; an anode diffusion layer arranged on an outer side of the anode catalyst layer; and a cathode diffusion layer arranged on an outer side of the cathode catalyst layer. Only in the anode catalyst layer, the density of a first catalyst layer portion located close to the anode diffusion layer is smaller than the density of a second catalyst layer portion located close to the ion conducting membrane.
Public/Granted literature
- US20100304240A1 MEMBRANE ELECTRODE ASSEMBLY FOR FUEL CELL, FUEL CELL, AND FUEL CELL SYSTEM Public/Granted day:2010-12-02
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