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公开(公告)号：US20190386340A1
公开(公告)日：2019-12-19
申请号：US16487725
申请日：2018-09-21
Applicant: LG CHEM, LTD. , POSTECH ACADEMY-INDUSTRY FOUNDATION
Inventor： Daeil KIM , Moon Jeong PARK , Jonghyun CHAE , Yeonju LEE , Lucia KIM , Ha Young JUNG , Gyuha JO
IPC: H01M10/0565 , H01M10/052 , C08G65/333 , C08G65/335
Abstract: A polymer electrolyte including a poly(ethylene oxide) (PEO) containing polymer; and a lithium salt, wherein a terminal of the poly (ethylene oxide) containing polymer is substituted with a sulfur compound functional group, a nitrogen compound functional group or a phosphorus compound functional group, and a method for preparing the same and a battery containing the same.
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公开(公告)号：US20240218115A1
公开(公告)日：2024-07-04
申请号：US18288849
申请日：2022-05-06
Applicant: LG CHEM, LTD.
Inventor： Yeonju LEE , Jung Yun CHOI , Chul Woong KIM , Suhyun CHO , Kyeongmin KIM
Abstract: A novel branched poly(3-hydroxypropionic acid)polymer of Chemical Formula 1:
R-[A-(B)n]k [Chemical Formula 1]
wherein: R is a trivalent or higher functional group derived from a polyfunctional monomer: A is a direct bond, or a linking group derived from ether, sulfide, ester, thioester, ketone, sulfoxide, sulfone, sulfonate ester, amine, amide, imine, imide, or urethane; B is a substituent of Chemical Formula 1-1 or Chemical Formula 1-2:
* is a moiety connected to A; k is an integer of 3 or more: and n is an integer of 1 to 700, and a method for preparation thereof, which makes it possible to effectively prepare a polymer that achieves an excellent production yield while maintaining the intrinsic physical properties of poly(3-hydroxypropionic acid).-
3.发明公开公开(公告)号：US20240076441A1
公开(公告)日：2024-03-07
申请号：US18385786
申请日：2023-10-31
Applicant: LG CHEM, LTD.
Inventor： Yeonju LEE , Jung Yun CHOI , Donggyun KANG , Chul Woong KIM , Suhyun CHO , Harim JEON
CPC classification number: C08G63/06 , C08G63/823
Abstract: Provided is a novel a copolymer with structures including a branched poly(3-hydroxypropionic acid) and a poly(lactic acid).
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公开(公告)号：US20240010788A1
公开(公告)日：2024-01-11
申请号：US18039676
申请日：2022-08-26
Applicant: LG CHEM, LTD.
Inventor： Hokeun LEE , Donggyun KANG , Eungwon KIM , Chul Woong KIM , Sai Bom PARK , Yeonju LEE , Jung Hyun JO , Jung Yun CHOI , Song Yi BAEK , Ju Yong LEE
CPC classification number: C08G63/06 , C08G63/85 , C08G63/912 , C08G2261/75 , C08G2230/00
Abstract: Provided is a block copolymer of Formula 1:
wherein in Formula 1: R1 and R2 are each independently hydrogen, N, O, S, or substituted or unsubstituted C1-20 alkyl: X1 and X2 are each independently a direct bond, —COO—, —NR′CO—, —(NR′)(COO)—, —R′NCONR′—, or —OCOO—, wherein the R's are each independently hydrogen or C1-20 alkyl; L is a direct bond, substituted or unsubstituted C1-10 alkylene, substituted or unsubstituted C6-60 arylene, or substituted or unsubstituted C2-60 heteroarylene containing one or more heteroatoms selected from the group consisting of N, O, and S; and n and m are each independently an integer of 1 to 10,000. The block copolymer has excellent mechanical properties along with environmental friendliness and biodegradability.-
公开(公告)号：US20230146000A1
公开(公告)日：2023-05-11
申请号：US17918371
申请日：2021-10-05
Applicant: LG CHEM, LTD.
Inventor： Jung Yun CHOI , Chul Woong KIM , Yeonju LEE , Suhyun CHO
CPC classification number: C08G63/06 , C08G63/823 , C08G63/85 , C08G63/08
Abstract: Provided is a copolymer comprising an irregularly arranged structure of a repeating unit of the following Chemical Formula 1 and a repeating unit of the following Chemical Formula 2, and a repeating unit of the following Chemical Formula 3 present at least at one end of the structure:
and is characterized by having an improved elongation and also having a high weight average molecular weight while maintaining intrinsic properties of a polylactic acid. Also provided are methods of preparing the copolymer.-
Patent Agency Ranking
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.
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公开(公告)号：US20190067739A1
公开(公告)日：2019-02-28
申请号：US16301815
申请日：2018-02-27
Applicant: LG CHEM, LTD.
Inventor： Yeonju LEE , Jonghyun CHAE , Daeil KIM
IPC: H01M10/0565 , H01M10/0525 , C08F220/70 , C08F220/22 , H01M4/525 , H01B1/12
Abstract: A solid polymer electrolyte having high mechanical strength and ion conductivity, and a lithium secondary battery including the same.
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8.发明申请公开(公告)号：US20200235427A1
公开(公告)日：2020-07-23
申请号：US16305163
申请日：2018-05-30
Applicant: LG CHEM, LTD.
Inventor： Daeil KIM , Jonghyun CHAE , Yeonju LEE
IPC: H01M10/0565 , H01M10/0525 , H01M10/0562 , H01M4/131 , H01M4/60 , H01M4/62 , H01M4/137
Abstract: The present invention relates to a polymer electrolyte of a multi-layer structure and an all solid-state battery comprising the same, wherein the polymer electrolyte can exhibit an effect capable of stably operating in the high voltage positive electrode and in the low voltage negative electrode, when using the polymer solid electrolyte having a multi-layer structure, which includes the first polymer electrolyte layer and the second polymer electrolyte layer of the present invention, and the all solid-state battery containing it is applicable in the battery field of electric vehicle in which high capacity and high-power battery are used.
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9.发明申请公开(公告)号：US20200212484A1
公开(公告)日：2020-07-02
申请号：US16646982
申请日：2018-07-20
Applicant: LG CHEM, LTD.
Inventor： Sujee KWON , Jeongae YOON , Sung Soo YOON , Kyung Oh KIM , Jonghyun CHAE , Yeonju LEE , Daeil KIM , Lucia KIM , Jongheon KWAK
IPC: H01M10/0565 , H01M10/0525 , H01M10/0562 , H01M10/0563
Abstract: A solid electrolyte composition for a lithium secondary battery including a fluorine-based polymer having grafted thereon a unit comprising alkylene oxide group and a crosslinkable functional group. The polymer may be formed by a process including grafting a monomer on a fluorine-based polymer, where the monomer includes alkylene oxide group and a crosslinkable functional group. Also disclosed is a solid electrolyte for a secondary battery formed by thermally curing the composition. By graft copolymerizing a monomer including alkylene oxide group and a crosslinkable functional group on a fluorine-based polymer having high lithium ion conductivity, the solid electrolyte is capable of providing a solid electrolyte for a secondary battery having significantly enhanced solid electrolyte ion conductivity and electrochemical stability.
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10.发明公开公开(公告)号：US20240228694A1
公开(公告)日：2024-07-11
申请号：US18288752
申请日：2022-05-06
Applicant: LG CHEM, LTD.
Inventor： Yeonju LEE , Jung Yun CHOI , Donggyun KANG , Chul Woong KIM , Suhyun CHO , Harim JEON
CPC classification number: C08G63/06 , C08G63/823
Abstract: Provided is a novel branched poly(lactic acid-3-hydroxypropionic acid) copolymer of Chemical Formula 1:
wherein: R is a trivalent or higher functional group derived from a polyfunctional monomer, A is a direct bond, or a linking group derived from ether, sulfide, ester, thioester, ketone, sulfoxide, sulfone, sulfonate ester, amine, amide, imine, imide, or urethane, and B is a substituent of Chemical Formula 1-1 or Chemical Formula 1-2,
where * is a moiety connected to A, k is an integer of 3 or more, n is an integer of 1 to 700, and m is an integer of 10 to 5,000. The copolymer can realize an excellent production yield while maintaining the intrinsic physical properties of poly(3-hydroxypropionic acid). Also provided is a method for preparing the copolymer.
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