公开(公告)号：US20230253594A1

公开(公告)日：2023-08-10

申请号：US18004469

申请日：2021-11-24

Applicant: KOLON INDUSTRIES, INC.

Inventor： Eunsu LEE ,  Donghoon LEE ,  Junghwa PARK ,  Hyesong LEE

IPC: H01M8/1062 ,  H01M8/1053 ,  H01M8/1039

CPC classification number: H01M8/1062 ,  H01M8/1053 ,  H01M8/1039 ,  H01M2008/1095

Abstract: Disclosed are a polymer electrolyte membrane and a membrane-electrode assembly comprising same, the membrane having, without a deterioration in performance such as ion conductivity, excellent mechanical properties, so as to ensure the manufacture of a membrane-electrode assembly having such high durability that the wet/dry cycle, which is measured according to accelerated durability test method of a NEDO protocol, is 30,000 times or more. The polymer electrolyte membrane of the present invention comprises: a porous support having a plurality of pores; and a composite layer including ionomers that fill the pores, wherein the ratio (IS/FS) of the stab initial strain (IS) of the polymer electrolyte membrane to the stab final strain (FS) of the polymer electrolyte membrane is 0.4 to 1.0.

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).

公开(公告)号：US20230006231A1

公开(公告)日：2023-01-05

申请号：US17769763

申请日：2020-12-23

Applicant: KOLON INDUSTRIES, INC.

Inventor： Junghwa PATK ,  Donghoon LEE ,  Nayoung KIM ,  Eunsu LEE ,  Hyesong LEE

IPC: H01M8/1048 ,  H01M8/1062 ,  H01M8/1081

Abstract: Disclosed are a polymer electrolyte membrane having high flexibility, high ionic conductivity, and excellent mechanical durability, a method for manufacturing same, and an electrochemical device comprising same. The polymer electrolyte membrane of the present invention comprises a polymer electrolyte material, wherein the polymer electrolyte material comprises: an ion conductor having an ion-exchange group; and an organic compound which binds to the ion-exchange group via an ionic bond or a hydrogen bond, thereby allowing the polymer electrolyte material to have an ionic crosslink structure or a hydrogen bond crosslink structure.

公开(公告)号：US20220393214A1

公开(公告)日：2022-12-08

申请号：US17769740

申请日：2020-12-23

Applicant: KOLON INDUSTRIES, INC.

Inventor： Eunsu LEE ,  Donghoon LEE ,  Nayoung KIM ,  Junghwa PARK ,  Hyesong LEE

IPC: H01M8/1067 ,  H01M8/1004 ,  H01M8/1058

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.