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公开(公告)号：US20230028893A1
公开(公告)日：2023-01-26
申请号：US17954856
申请日：2022-09-28
Inventor： In Sung Uhm , Sang Young Lee , Yo Han Kwon , Ju Myung Kim , Joon Won Lim , Jae Hyun Lee , Je Young Kim , Seong Hyeok Kim
IPC: H01M4/66 , H01M4/04 , H01M4/139 , H01M4/74 , H01M10/0587
Abstract: The present invention relates to a three-dimensional structure electrode, a method for manufacturing same, and an electrochemical element including the electrode. The present invention is characterized by comprising: (a) an upper conductive layer and a lower conductive layer which have a structure constituting an assembly within which a conductive material and a porous nonwoven fabric including a plurality of polymeric fibers are three-dimensionally connected in an irregular and continuous manner, thereby forming a mutually connected porous structure; and (b) an active material layer forming the same assembly structure as the conductive layers and forming a three-dimensionally filled structure in which electrode active material particles are uniformly filled inside the mutually connected porous structure formed in the assembly structure, wherein the active material layer is formed between the upper conductive layer and the lower conductive layer.
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公开(公告)号：US20220344630A1
公开(公告)日：2022-10-27
申请号：US17762541
申请日：2021-07-30
Applicant: LG Energy Solution, Ltd.
Inventor： Il Hong Kim , Sung Chul Lim , Yo Han Kwon
IPC: H01M4/04
Abstract: A rolling method for an electrode, the method comprising the steps of: coating an electrode slurry including an electrode active material, on a current collector, to form an electrode specimen; measuring rheological properties of the electrode specimen according to temperature; deriving an appropriate temperature condition for rolling the electrode from the rheological properties of the electrode specimen according to temperature; and rolling the electrode in the appropriate temperature condition.
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公开(公告)号：US12046755B2
公开(公告)日：2024-07-23
申请号：US17290376
申请日：2019-11-15
Applicant: LG ENERGY SOLUTION, LTD.
Inventor： Yo Han Kwon , In Sung Uhm , Jae Hyun Lee , Dong Chan Lee , Joonwon Lim
CPC classification number: H01M4/602 , H01M4/0416 , H01M4/366 , H01M4/386 , H01M4/387 , H01M4/587 , H01M10/0525 , H01M2004/027
Abstract: A negative electrode active material that includes active material core particles that allow the intercalation and deintercalation of lithium ions; a conductive material disposed on a surface of each active material core particle; an organic linker that connects the active material core particles and the conductive material; and an elastomer that covers at least a part of the active material core particles and the conductive material. The conductive material includes at least one selected from the group consisting of a linear conductive material and a planar conductive material, and the organic linker is a compound that includes a hydrophobic structure and a substituent including a polar functional group.
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公开(公告)号：US11978911B2
公开(公告)日：2024-05-07
申请号：US17954856
申请日：2022-09-28
Inventor： In Sung Uhm , Sang Young Lee , Yo Han Kwon , Ju Myung Kim , Joon Won Lim , Jae Hyun Lee , Je Young Kim , Seong Hyeok Kim
IPC: H01M4/66 , H01M4/04 , H01M4/13 , H01M4/139 , H01M4/74 , H01M10/0525 , H01M10/0587 , H01M10/054 , H01M12/06
CPC classification number: H01M4/668 , H01M4/0435 , H01M4/139 , H01M4/74 , H01M10/0587 , H01M10/0525 , H01M10/054 , H01M12/06
Abstract: The present invention relates to a three-dimensional structure electrode, a method for manufacturing same, and an electrochemical element including the electrode. The present invention is characterized by comprising: (a) an upper conductive layer and a lower conductive layer which have a structure constituting an assembly within which a conductive material and a porous nonwoven fabric including a plurality of polymeric fibers are three-dimensionally connected in an irregular and continuous manner, thereby forming a mutually connected porous structure; and (b) an active material layer forming the same assembly structure as the conductive layers and forming a three-dimensionally filled structure in which electrode active material particles are uniformly filled inside the mutually connected porous structure formed in the assembly structure, wherein the active material layer is formed between the upper conductive layer and the lower conductive layer.
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公开(公告)号：US20230021284A1
公开(公告)日：2023-01-19
申请号：US17783377
申请日：2021-09-16
Applicant: LG Energy Solution, Ltd.
Inventor： Sung Chul Lim , Young Cheol Choi , Min Chul Jang , Cheol Hee Park , Yo Han Kwon , Il Hong Kim , Joon Kyo Seo
IPC: H01M10/44 , H01M10/0525 , H01M4/131 , H01M4/134 , H01M4/1393
Abstract: An activation method for a lithium secondary battery, and a lithium secondary battery manufactured using the same are disclosed herein. In some embodiments, the method comprises charging a secondary battery, wherein the secondary battery includes a positive electrode having a sacrificial positive electrode material represented by Formula 1 and having an orthorhombic structure, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and an electrolyte solution, and then holding the secondary battery for a predetermined period of time at a voltage of 3.2 V or greater.
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Patent Agency Ranking
公开(公告)号：US12261263B2
公开(公告)日：2025-03-25
申请号：US18276557
申请日：2022-07-21
Applicant: LG Energy Solution, Ltd.
Inventor： Byung Chun Park , Yo Han Kwon , Je Young Kim , Seok Koo Kim , Wang Mo Jung , Yong Ju Lee , Chul Haeng Lee
IPC: H01M10/0525 , H01M4/131 , H01M4/134 , H01M4/62 , H01M4/02
Abstract: A lithium secondary battery includes a positive electrode, a negative electrode, a separator, and an electrolyte, wherein the positive electrode includes a positive electrode active material layer having a positive electrode active material containing an overlithiated manganese-based oxide represented by Formula 1 below, and the negative electrode includes a negative electrode active material layer having a silicon-based negative electrode active material, LiaNibCocMndMeO2 [Formula 1] wherein, M is at least one selected from the group consisting of Al, B, Co, W, Mg, V, Ti, Zn, Ga, In, Ru, Nb, Sn, Sr, and Zr, and 1
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公开(公告)号：US12136731B2
公开(公告)日：2024-11-05
申请号：US17291409
申请日：2019-12-10
Applicant: LG ENERGY SOLUTION, LTD.
Inventor： Yo Han Kwon , Dong Chan Lee , In Sung Uhm , Jung Woo Yoo , Jae Hyun Lee , Je Young Kim
IPC: H01M4/38 , H01M4/134 , H01M4/62 , H01M10/0525 , H01M4/02
Abstract: A negative electrode active material that includes an active material core that allows for the intercalation and deintercalation of lithium ions. The negative electrode active material also includes a plurality of conductive materials positioned on a surface of the active material core, a plurality of organic linkers each including a hydrophobic group and a polar functional group bonded to the hydrophobic group, and an elastic unit. The elastic unit includes an elastic moiety having two or more binding sites, and a functional group bonded to a binding site of the elastic moiety. The functional group reacts with the polar functional group of the organic linker, and one or more of the plurality of organic linkers are connected to the conductive materials through the hydrophobic groups of the organic linkers.
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公开(公告)号：US12080879B1
公开(公告)日：2024-09-03
申请号：US18697933
申请日：2022-10-05
Applicant: LG Energy Solution, Ltd.
Inventor： Seung Won Park , Yo Han Kwon , Je Young Kim , Seok Koo Kim , Wang Mo Jung , Chul Haeng Lee , Byung Chun Park
CPC classification number: H01M4/364 , H01M4/133 , H01M4/366 , H01M4/483 , H01M4/505 , H01M4/587 , H01M4/625 , H01M10/0525 , H01M2004/021 , H01M2004/027 , H01M2004/028
Abstract: A lithium secondary battery including: a negative electrode; a positive electrode; a separator disposed between the negative electrode and the positive electrode; and an electrolyte, wherein the negative electrode includes SiOx (where 0
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公开(公告)号：US20240047731A1
公开(公告)日：2024-02-08
申请号：US18276557
申请日：2022-07-21
Applicant: LG Energy Solution, Ltd.
Inventor： Byung Chun Park , Yo Han Kwon , Je Young Kim , Seok Koo Kim , Wang Mo Jung , Yong Ju Lee , Chul Haeng Lee
IPC: H01M10/0525 , H01M4/134 , H01M4/131 , H01M4/62
CPC classification number: H01M10/0525 , H01M4/134 , H01M4/131 , H01M4/623 , H01M2004/027
Abstract: A lithium secondary battery includes a positive electrode, a negative electrode, a separator, and an electrolyte, wherein the positive electrode includes a positive electrode active material layer having a positive electrode active material containing an overlithiated manganese-based oxide represented by Formula 1 below, and the negative electrode includes a negative electrode active material layer having a silicon-based negative electrode active material,
LiaNibCocMndMeO2 [Formula 1]
wherein, M is at least one selected from the group consisting of Al, B, Co, W, Mg, V, Ti, Zn, Ga, In, Ru, Nb, Sn, Sr, and Zr, and 1-
公开(公告)号：US11862789B2
公开(公告)日：2024-01-02
申请号：US17289351
申请日：2019-10-28
Applicant: LG ENERGY SOLUTION, LTD.
Inventor： Yo Han Kwon , Jae Hyun Lee , Je Young Kim , Yong Ju Lee , In Sung Uhm , Dong Chan Lee , Joonwon Lim
CPC classification number: H01M4/366 , H01M4/13 , H01M4/483 , H01M4/625 , H01M10/0525 , H01M2004/027
Abstract: A negative electrode active material that includes an active material core that allows the intercalation and deintercalation of lithium ions; and a conductive material that is attached to a surface of the active material core through an organic linker. The conductive material includes at least one selected from the group consisting of a linear conductive material and a planar conductive material. The organic linker is a compound that includes a hydrophobic structure and a substituent including a polar functional group.
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