公开(公告)号：US20230178782A1

公开(公告)日：2023-06-08

申请号：US17996931

申请日：2021-11-05

Applicant: KOLON INDUSTRIES, INC.

Inventor： Junghwa PARK ,  Dong-Hoon LEE ,  Nayoung KIM ,  Eunsu LEE ,  Changhoon OH ,  Hyesong LEE

IPC: H01M8/1048 ,  H01M8/1069 ,  H01M8/1086 ,  H01M8/1067 ,  H01M8/1051

CPC classification number: H01M8/1048 ,  H01M8/1083 ,  H01M8/1086 ,  H01M8/1067 ,  H01M8/1051 ,  H01M2008/1095

Abstract: Disclosed are a polymer electrolyte membrane having both high ion conductivity and excellent chemical durability, a manufacturing method therefor, and an electrochemical device comprising same. The polymer electrolyte membrane of the present invention comprises an electrolyte composition, the electrolyte composition containing: an ion conductor; and a radical scavenger, wherein the radical scavenger comprises an organic cyclic compound having at least one functional group selected from the group consisting of a hydroxyl group (—OH), an amine group (—NH2), a carboxyl group (—COOH), and an amide group (—CONH2).