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Patent Searching and Data


Title:
POLYMER ELECTROLYTE MEMBRANE, MEMBRANE-ELECTRODE ASSEMBLY INCLUDING SAME, AND METHOD FOR MEASURING DURABILITY THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/133044
Kind Code:
A1
Abstract:
Disclosed are: a polymer electrolyte membrane which can guarantee the production of a membrane-electrode assembly having excellent mechanical properties without a decrease in performance, such as in ionic conductivity, and thus having a high enough durability to achieve at least 30,000 wet/dry cycles as measured according to the NEDO protocol; a membrane-electrode assembly including the polymer electrolyte membrane; and a method for measuring the durability of the membrane-electrode assembly. The polymer electrolyte membrane according to the present invention comprises a composite layer including: a porous support having multiple pores; and ionomers filling the pores, and has an MD internal tearing strength of 150 N/mm or greater, a TD internal tearing strength of 150 N/mm or greater, a stab initial strain of 8% or less, and a stab final strain of 10% or less.

Inventors:
LEE EUNSU (KR)
LEE DONGHOON (KR)
KIM NAYOUNG (KR)
PARK JUNGHWA (KR)
LEE HYESONG (KR)
Application Number:
PCT/KR2020/018954
Publication Date:
July 01, 2021
Filing Date:
December 23, 2020
Export Citation:
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Assignee:
KOLON INC (KR)
International Classes:
H01M8/1067; H01M8/1004; H01M8/1018; H01M8/1053; H01M8/1058
Domestic Patent References:
WO2019217791A22019-11-14
Foreign References:
KR101877753B12018-07-13
KR20190131687A2019-11-27
KR20090032131A2009-03-31
US6110333A2000-08-29
Attorney, Agent or Firm:
ASTRAN INT'L IP GROUP (KR)
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