Invention Grant
- Patent Title: Electrolyte membrane and method for producing same
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Application No.: US16320354Application Date: 2017-05-31
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Publication No.: US11276871B2Publication Date: 2022-03-15
- Inventor: Takeo Yamaguchi , Yuhei Oshiba , Hidenori Ohashi , Jin Tomatsu , Koji Furuya , Takao Ohno , Mami Nanbu
- Applicant: TOKYO INSTITUTE OF TECHNOLOGY , TEIJIN LIMITED , KANAGAWA INSTITUTE OF INDUSTRIAL SCIENCE AND TECHNOLOGY
- Applicant Address: JP Tokyo; JP Osaka; JP Ebina
- Assignee: TOKYO INSTITUTE OF TECHNOLOGY,TEIJIN LIMITED,KANAGAWA INSTITUTE OF INDUSTRIAL SCIENCE AND TECHNOLOGY
- Current Assignee: TOKYO INSTITUTE OF TECHNOLOGY,TEIJIN LIMITED,KANAGAWA INSTITUTE OF INDUSTRIAL SCIENCE AND TECHNOLOGY
- Current Assignee Address: JP Tokyo; JP Osaka; JP Ebina
- Agency: Sughrue Mion, PLLC
- Priority: JPJP2016-145735 20160725
- International Application: PCT/JP2017/020368 WO 20170531
- International Announcement: WO2018/020826 WO 20180201
- Main IPC: H01M8/106
- IPC: H01M8/106 ; H01M8/1062 ; C25B13/08 ; H01M8/1025 ; H01M8/1039 ; H01M8/1081 ; H01M8/1086 ; H01B1/12 ; H01B1/10 ; H01B13/00 ; H01M8/02 ; C08J9/42 ; H01B1/06 ; H01M8/10 ; C25B1/04 ; C25B9/73

Abstract:
To provide an electrolyte membrane that exhibits high proton conductivity even at low humidity, the electrolyte membrane includes a composite membrane including: a microporous polyolefin membrane that has an average pore diameter of 1 to 1000 nm and a porosity of 50 to 90% and that can be impregnated with a solvent having a surface free energy of 28 mJ/m2 or more, and an electrolyte containing a perfluorosulfonic acid polymer having an EW of 250 to 850 loaded into the pores of the microporous polyolefin membrane, wherein the membrane thickness of the composite membrane is 1 to 20 μm.
Public/Granted literature
- US20190267655A1 ELECTROLYTE MEMBRANE AND METHOD FOR PRODUCING SAME Public/Granted day:2019-08-29
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