ION EXCHANGE MEMBRANE, MANUFACTURING METHOD THEREFOR, AND ENERGY STORAGE DEVICE COMPRISING SAME

WIPO Patent Application WO/2018/199458

A1

The present invention relates to an ion exchange membrane, a manufacturing method therefor, and an energy storage device comprising the same. The ion exchange membrane comprises: a porous support including a plurality of pores; a first ion conductor positioned on one surface of the porous support; and a second ion conductor positioned on the other surface of the porous support, wherein each of the first ion conductor and the second ion conductor is a polymer containing a hydrophilic repeating unit and a hydrophobic repeating unit, and molar ratios of the hydrophilic repeating unit and the hydrophobic repeating unit are different from each other. The ion exchange membrane has excellent ion conductivity performance and has reduced membrane resistance and thus enhances both performance efficiency and voltage efficiency of an energy storage device, thereby improving overall efficiency of the energy storage device. In addition, the ion exchange membrane is excellent in shape stability and can reduce crossover of a vanadium ion, thereby securing durability performance of the energy storage device.

LEE EUN-SU (KR)
LEE DONG-HOON (KR)
KIM NA-YOUNG (KR)
YUM SEUNG-JIB (KR)

PCT/KR2018/002430

November 01, 2018

February 28, 2018

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KOLON INC (KR)

C08J5/22; H01M8/1023; H01M8/1053; H01M8/1069; H01M8/18

KR20170038742A	2017-04-07
KR20110006122A	2011-01-20
KR20120021517A	2012-03-09
KR20120060327A	2012-06-12
KR20160059285A	2016-05-26
KR20130004615A	2013-01-14
US20040005474A1	2004-01-08
KR20060083372A	2006-07-20
KR20110120185A	2011-11-03
KR20150118675A	2015-10-23
KR101522256B1	2015-05-22
KR101440829B1	2014-09-17
KR101214399B1	2012-12-21

See also references of EP 3617255A4

CHEON JEE INTERNATIONAL PATENT & LAW FIRM (KR)

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