公开(公告)号：US20210028488A1

公开(公告)日：2021-01-28

申请号：US17040495

申请日：2019-07-03

Applicant: LG CHEM, LTD.

Inventor： Jehoon LEE ,  Lucia KIM ,  Dong Hyeop HAN ,  Jonghyun CHAE ,  Wansoo CHANG

IPC: H01M10/0565 ,  C08F293/00 ,  H01M10/0525

Abstract: A polymer electrolyte and a method for manufacturing the same are disclosed. More specifically, a polymer electrolyte membrane having excellent ionic conductivity and low crosslinking degree can be prepared using a crosslinkable reversible addition fragmentation chain transfer polymerization agent (RAFT agent).

公开(公告)号：US20210265661A1

公开(公告)日：2021-08-26

申请号：US17251871

申请日：2019-09-27

Applicant: LG CHEM, LTD. ,  SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

Inventor： Jehoon LEE ,  Jong-Chan LEE ,  Jonghyun CHAE ,  Lucia KIM ,  Dong Hyeop HAN ,  Na Kyung KIM ,  Daun JEONG ,  Ji-Hoon BAIK ,  Wansoo CHANG

IPC: H01M10/0565 ,  H01M10/058 ,  H01M10/0525 ,  C08L83/04 ,  C01B35/14

Abstract: The present invention relates to a polymer electrolyte and a method for manufacturing same. More specifically, a polymer electrolyte with improved ion conductivity can be produced by adding boron nitride to a solid electrolyte comprising polysiloxane.

公开(公告)号：US20210005930A1

公开(公告)日：2021-01-07

申请号：US17040274

申请日：2019-09-20

Applicant: LG CHEM, LTD.

Inventor： Lucia KIM ,  Jehoon LEE ,  Jonghyun CHAE ,  Dong Hyeop HAN ,  Wansoo CHANG

IPC: H01M10/0565 ,  H01M10/0525

Abstract: A solid polymer electrolyte composition and a solid polymer electrolyte are disclosed. More particularly, a solid polymer electrolyte composition and a solid polymer electrolyte formed by photocuring the same are disclosed, including a polymer (A) containing alkylene oxide and having one reactive double bond, a multifunctional cross-linkable polymer (B), and an ionic liquid, wherein the ionic liquid includes an amide-based solvent and a lithium salt.

公开(公告)号：US20200350586A1

公开(公告)日：2020-11-05

申请号：US16643367

申请日：2018-07-12

Applicant: LG CHEM, LTD. ,  SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

Inventor： Jonghyun CHAE ,  Jong-Chan LEE ,  Yeonju LEE ,  Daeil KIM ,  Lucia KIM ,  Jehoon LEE ,  Na Kyung KIM ,  Daun JEONG

IPC: H01M4/60 ,  H01M10/0525

Abstract: A polymer material for a lithium secondary battery having ionic conductivity and electronic conductivity at the same time, and a method for preparing the same. The polymer material includes a polythiophene-based polymer and a conductive polymer, and the polymer material may be formed by forming a polythiophene-based polymer, forming a conductive polymer, and heat-treating the polythiophene-based polymer and the conductive polymer.