Invention Grant
- Patent Title: Reinforced composite electrolyte membrane for fuel cell
- Patent Title (中): 燃料电池用强化复合电解质膜
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Application No.: US11729931Application Date: 2007-03-30
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Publication No.: US09054357B2Publication Date: 2015-06-09
- Inventor: Eun Ju Kim , Chong Kyu Shin , Bong Keun Lee , Seong Ho Choi
- Applicant: Eun Ju Kim , Chong Kyu Shin , Bong Keun Lee , Seong Ho Choi
- Applicant Address: KR Seoul
- Assignee: LG CHEM, LTD.
- Current Assignee: LG CHEM, LTD.
- Current Assignee Address: KR Seoul
- Agency: McKenna Long & Aldridge LLP
- Priority: KR10-2006-0029839 20060331
- Main IPC: H01M6/18
- IPC: H01M6/18 ; H01M8/10 ; H01M8/04

Abstract:
Disclosed is a composite electrolyte membrane comprising a microporous polymer substrate and a sulfonated polymer electrolyte. The composite electrolyte membrane comprises: a first polymer electrolyte layer formed of a first non-fluorinated or partially-fluorinated sulfonated polymer electrolyte; a non-fluorinated or partially-fluorinated microporous polymer substrate stacked on the first polymer electrolyte layer, wherein pores of the microporous polymer substrate are impregnated with a second non-fluorinated or partially-fluorinated sulfonated polymer electrolyte, and the first polymer electrolyte and the second polymer electrolyte are entangled with each other on an interface thereof; and a third polymer electrolyte layer formed on the microporous polymer substrate impregnated with the second polymer electrolyte by a third non-fluorinated or partially-fluorinated sulfonated polymer electrolyte, wherein the second polymer electrolyte and the third polymer electrolyte are entangled with each other on an interface thereof. A method for manufacturing the composite electrolyte membrane, and a membrane-electrode assembly (MEA) and a fuel cell comprising the composite electrolyte membrane are also disclosed.
Public/Granted literature
- US20070231653A1 Reinforced composite electrolyte membrane for fuel cell Public/Granted day:2007-10-04
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