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公开(公告)号：US11387489B2
公开(公告)日：2022-07-12
申请号：US16487725
申请日：2018-09-21
发明人： Daeil Kim , Moon Jeong Park , Jonghyun Chae , Yeonju Lee , Lucia Kim , Ha Young Jung , Gyuha Jo
IPC分类号： H01M10/0565 , C08G65/333 , C08G65/335 , H01M10/052
摘要： 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：US11881554B2
公开(公告)日：2024-01-23
申请号：US16954836
申请日：2019-07-24
发明人： Daeil Kim , Moon Jeong Park , Jonghyun Chae , Ha Young Jung , Suhwan Kim , Sung Chul Lim , Jihoon Ahn
IPC分类号： H01M10/0565 , C08G65/333 , C08G65/335 , H01M10/0525
CPC分类号： H01M10/0565 , C08G65/3355 , C08G65/33368 , H01M10/0525 , H01M2300/0028 , H01M2300/0065 , H01M2300/0082
摘要： A polymer electrolyte is provided, which includes a polymer including an ethylene oxide unit; and a lithium salt, wherein the terminal of the polymer is substituted with one to four functional groups selected from the group consisting of a nitrogen compound functional group and phosphorus compound functional group, and the terminal of the polymer and the one to four functional groups are linked by one selected from the group consisting of a C2 to C20 alkylene linker, a C2 to C20 ether linker, and a C2 to C20 amine linker. A method for preparing the same is also provided.
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公开(公告)号：US11710851B2
公开(公告)日：2023-07-25
申请号：US16335780
申请日：2018-04-12
申请人： LG CHEM, LTD.
发明人： Youngcheol Choi , Seungha Kim , Jonghyun Chae , Kyoung Hoon Kim , Yeonju Lee , Daeil Kim , Lucia Kim
IPC分类号： H01M10/0565 , H01M10/0525 , H01M10/052 , H01M10/056 , H01M4/02
CPC分类号： H01M10/0565 , H01M10/052 , H01M10/056 , H01M10/0525 , H01M2004/028 , H01M2300/0028 , H01M2300/0054 , H01M2300/0082 , H01M2300/0094 , Y02E60/10
摘要： A polymer solid electrolyte having high ion conductivity, heat resistance and dimensional stability, and having excellent oxidation stability and voltage stability, and a lithium secondary battery including the same.
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公开(公告)号：US10886563B2
公开(公告)日：2021-01-05
申请号：US16330795
申请日：2018-04-13
申请人： LG CHEM, LTD.
发明人： Seungha Kim , Youngcheol Choi , Jonghyun Chae , Kyoung Hoon Kim , Yeonju Lee , Daeil Kim , Lucia Kim
IPC分类号： H01M10/0565 , H01M10/052 , H01M10/42 , C07C309/65 , C07C309/63 , C07D333/36 , C07D333/48 , H01M10/0525 , H01M10/0567 , H01M10/0569 , H01M10/0568
摘要： A polymer solid electrolyte having high ion conductivity and interfacial stability is provided. An additive including an organic compound having a highest occupied molecular orbital (HOMO) energy of −8.5 eV or higher is used, which facilitates film formation in a positive electrode due to low oxidation potential. The resulting polymer solid electrolytes have enhanced film formation on the surface of a positive electrode surface and enhanced interfacial stability, while maintaining battery performance. Lithium secondary battery having enhanced performance are also described.
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公开(公告)号：US11870033B2
公开(公告)日：2024-01-09
申请号：US16958426
申请日：2019-01-11
申请人： LG CHEM, LTD.
发明人： Daeil Kim , Jonghyun Chae
IPC分类号： H01M10/0565 , C08F290/14 , H01M10/0525 , H01M50/411 , H01M50/417 , C08F12/14 , C08F20/14
CPC分类号： H01M10/0565 , C08F290/141 , H01M10/0525 , H01M50/411 , H01M50/417 , C08F12/14 , C08F20/14 , H01M2300/0065 , H01M2300/0082
摘要： A solid polymer electrolyte and a method of manufacturing the same are provided. More particularly, a solid polymer electrolyte having a high content of solids and exhibiting a flame retardant property and a method of manufacturing the same, wherein the solid polymer electrolyte includes a multifunctional acrylate-based polymer, a C2 to C10 polyalkylene oxide, a lithium salt and a non-aqueous solvent and wherein the multifunctional acrylate-based polymer is cross-linked with the polyalkylene oxide to form a semi-interpenetrating polymer network (semi-IPN).
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公开(公告)号：US11274207B2
公开(公告)日：2022-03-15
申请号：US16500031
申请日：2018-10-30
申请人： LG CHEM, LTD.
发明人： Hyun Woog Ryu , Joong Jin Han , Eunju Park , Kwonsu Jung , Hansol Kim , Jong Hyun Chae , Daeil Kim
摘要： The present invention provides a polyarylene sulfide resin composition comprising a mixture of polyarylene sulfide and a binder resin having excellent electrical conductivity and high temperature stability.
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公开(公告)号：US11417909B2
公开(公告)日：2022-08-16
申请号：US16646982
申请日：2018-07-20
申请人： LG CHEM, LTD.
发明人： Sujee Kwon , Jeongae Yoon , Sung Soo Yoon , Kyung Oh Kim , Jonghyun Chae , Yeonju Lee , Daeil Kim , Lucia Kim , Jongheon Kwak
IPC分类号： H01M10/0565 , H01M10/0525 , H01M10/0562 , H01M10/0563
摘要： 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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8.发明授权公开(公告)号：US10903520B2
公开(公告)日：2021-01-26
申请号：US16305163
申请日：2018-05-30
申请人： LG CHEM, LTD.
发明人： Daeil Kim , Jonghyun Chae , Yeonju Lee
IPC分类号： H01M4/131 , H01M4/60 , H01M10/0565 , H01M4/137 , H01M4/62 , H01M10/0525 , H01M10/0562 , H01M4/02
摘要： 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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公开(公告)号：US10511056B2
公开(公告)日：2019-12-17
申请号：US16301815
申请日：2018-02-27
申请人： LG CHEM, LTD.
发明人： Yeonju Lee , Jonghyun Chae , Daeil Kim
IPC分类号： H01M10/0565 , H01M10/0525 , C08F220/70 , C08F220/22 , H01M4/525 , H01B1/12 , C08F220/30
摘要： A solid polymer electrolyte having high mechanical strength and ion conductivity, and a lithium secondary battery including the same.
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