Invention Grant
- Patent Title: Cathode electrode design for electrochemical fuel cells
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Application No.: US16336462Application Date: 2017-09-29
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Publication No.: US11239471B2Publication Date: 2022-02-01
- Inventor: Siyu Ye , Alexander Man-Chung Leung , Kyoung Bai , Dustin William H. Banham , Alan Young
- Applicant: Ballard Power Systems Inc.
- Applicant Address: CA Burnaby
- Assignee: Ballard Power Systems Inc.
- Current Assignee: Ballard Power Systems Inc.
- Current Assignee Address: CA Burnaby
- Agency: Seed Intellectual Property Law Group LLP
- International Application: PCT/US2017/054596 WO 20170929
- International Announcement: WO2018/064623 WO 20180405
- Main IPC: H01M4/86
- IPC: H01M4/86 ; H01M8/1004 ; H01M4/88 ; H01M4/90 ; C08F214/26

Abstract:
A membrane electrode assembly including: an anode electrode; a cathode electrode; and a polymer electrolyte membrane; wherein the cathode includes a first cathode catalyst sublayer including a first precious metal catalyst composition and a first ionomer composition including a first ionomer and a second ionomer; and a second cathode catalyst sublayer including a second precious metal catalyst composition and a second ionomer composition including a third ionomer; wherein the first ionomer is different from the second ionomer in at least one of chemical structure and equivalent weight.
Public/Granted literature
- US20200036012A1 CATHODE ELECTRODE DESIGN FOR ELECTROCHEMICAL FUEL CELLS Public/Granted day:2020-01-30
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