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1.发明授权公开(公告)号：US12009515B2
公开(公告)日：2024-06-11
申请号：US16764641
申请日：2018-11-22
Applicant: LG CHEM, LTD.
Inventor： Yong Ju Lee , Rae Hwan Jo , Su Min Lee , Dong Hyuk Kim , Se Mi Park
CPC classification number: H01M4/485 , C01B33/22 , C01B33/32 , H01M4/366 , H01M4/625 , H01M10/0525 , C01P2002/02 , C01P2004/80 , C01P2006/40 , H01M2004/027
Abstract: A negative electrode active material for a lithium secondary battery, which includes a silicon-based particle represented by M-SiOx, wherein M is Li, Mg, Ca, Al, or Ti, and 0≤x
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公开(公告)号：US11515515B2
公开(公告)日：2022-11-29
申请号：US16754388
申请日：2018-10-19
Applicant: LG CHEM, LTD.
Inventor： Il Geun Oh , Eun Kyung Kim , Yong Ju Lee , Rae Hwan Jo , Su Min Lee , Jung Hyun Choi , Dong Hyuk Kim , Se Mi Park
IPC: H01M4/04 , H01M4/131 , H01M4/58 , H01M4/134 , H01M10/0525 , C01B33/32 , H01M4/1395 , H01M4/02
Abstract: The present invention relates to a method of preparing a negative electrode active material which includes forming a mixture by mixing Li2O and SiOx(0
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公开(公告)号：US11581532B2
公开(公告)日：2023-02-14
申请号：US16745904
申请日：2020-01-17
Applicant: LG Chem, Ltd.
Inventor： Se Mi Park , Eun Kyung Kim , Yong Ju Lee , Sun Young Shin , Dong Hyuk Kim
Abstract: An electrode for batteries that does not include a metal-film-type current collector is disclosed herein. In some embodiments, the electrode comprises a composite having a core-shell structure including a core having an electrode active material, and a metal material coated on or doped in the surface of the core. A secondary battery having the electrode has increased capacity and energy density and exhibits improved lifespan characteristics.
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4.发明申请公开(公告)号：US20180254522A1
公开(公告)日：2018-09-06
申请号：US15754174
申请日：2016-11-09
Applicant: LG Chem, Ltd.
Inventor： Se Mi Park , Yong Jun Kim , Chae Ah Kim , Seok Koo Kim , Seung Hyun Chung
IPC: H01M10/0565 , H01M10/04 , H01M10/0525 , B29C35/02 , H01M10/0585 , H01M4/1315
CPC classification number: H01M10/0565 , B29C35/00 , B29C35/02 , H01M4/1315 , H01M10/0404 , H01M10/0525 , H01M10/0585 , H01M2300/0082 , H01M2300/0085
Abstract: The present invention provides a curing die for manufacturing a gel polymer electrolyte, and a method for manufacturing a gel polymer battery cell by using the same, the curing die comprising: a first die having a recessed part, which is formed inside a battery case and has a processing battery cell mounted therein and including an electrode assembly and a composition for forming the gel polymer electrolyte; and a second die coupled to the first die so as to seal the processing battery cell mounted in the recessed part.
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公开(公告)号：US11043663B2
公开(公告)日：2021-06-22
申请号：US16337353
申请日：2018-03-08
Applicant: LG CHEM, LTD.
Inventor： Ji Won Min , Seok Koo Kim , Yong Jun Kim , Janis Doelle , Se Mi Park
Abstract: A method of manufacturing a high loading electrode, which prevents the phenomenon of the binder being lifted, does not cause drying of the electrode slurry, and does not cause damage of the electrode layer and reduction of the electrode strength at the corners in the punching is provided. The method of manufacturing the high loading electrode includes applying an electrode slurry on a release film to thereby produce an electrode layer having the release film attached thereto, punching the electrode layer having the release film attached thereto to provide a plurality of punched electrode layers, each punched electrode layer having a size of a unit electrode, separating and removing the release film from the punched electrode layers, and stacking and rolling at least two punched electrode layers on a current collector.
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Patent Agency Ranking
公开(公告)号：US20190267614A1
公开(公告)日：2019-08-29
申请号：US16346347
申请日：2018-05-25
Applicant: LG Chem, Ltd.
Inventor： Yong Ju Lee , Sun Young Shin , Se Mi Park , Il Geun Oh , Eun Kyung Kim
IPC: H01M4/1391 , H01M4/131 , H01M4/134 , H01M4/62 , H01M4/525 , H01M4/38 , H01M4/04 , H01M10/0525
Abstract: The present invention relates to a method of preparing a positive electrode for a secondary battery, which includes preparing a positive electrode by forming a positive electrode active material layer including a positive electrode active material, a conductive agent, and a binder on a positive electrode collector, impregnating the positive electrode in a sacrificial salt solution including a sacrificial salt additive, and, after the impregnating of the positive electrode in the sacrificial salt solution, drying the positive electrode to fill pores of the positive electrode active material layer with the sacrificial salt additive, and a positive electrode for a secondary battery prepared thereby.
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公开(公告)号：US20180047972A1
公开(公告)日：2018-02-15
申请号：US15555858
申请日：2016-09-29
Applicant: LG Chem, Ltd.
Inventor： Seung Hyun Chung , Chae Ah Kim , Se Mi Park
CPC classification number: H01M2/34 , H01M2/0237 , H01M2/0275 , H01M2/1016 , H01M2/345 , H01M10/425 , H01M10/48 , H01M10/482 , H01M2200/20 , H01M2220/20
Abstract: The present invention relates to a battery module that includes a probe for detecting expansion of a battery cell. More particularly, the present invention relates to a battery module including: two or more of rechargeable battery cells; a sensing probe provided at an external surface of at least one of the battery cells to sense a local expansion change of the battery cell and transmitting a signal; and a controller receiving the signal from the sensing probe, estimating an internal pressure of the battery cell from the received signal, and generating a warning signal to assure safety of the battery module when the estimated internal pressure exceeds a threshold pressure level.
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公开(公告)号：US11929498B2
公开(公告)日：2024-03-12
申请号：US16756305
申请日：2018-10-26
Applicant: LG CHEM, LTD.
Inventor： Su Min Lee , Eun Kyung Kim , Yong Ju Lee , Rae Hwan Jo , Dong Hyuk Kim , Se Mi Park
CPC classification number: H01M4/386 , H01M4/134 , H01M4/366 , H01M4/663 , H01M10/0525 , H01M2004/021 , H01M2004/027
Abstract: A silicon-carbon complex comprising carbon-based particles and silicon-based particles, wherein the silicon-based particles are dispersed and positioned on surfaces of the carbon-based particles, the carbon-based particles have a specific surface area of 0.4 m2/g to 1.5 m2/g, and the silicon-based particles are doped with one or more elements selected from the group consisting of Mg, Li, Ca, and Al, and a negative electrode active material for lithium secondary battery comprising the same.
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9.发明授权公开(公告)号：US11196043B2
公开(公告)日：2021-12-07
申请号：US16766138
申请日：2018-11-22
Applicant: LG CHEM, LTD.
Inventor： Se Mi Park , Je Young Kim , Yong Ju Lee , Rae Hwan Jo , Su Min Lee , Jung Hyun Choi
IPC: H01M4/36 , H01M4/38 , H01M4/62 , H01M10/0525 , H01M4/02
Abstract: The present invention relates to a silicon-based particle-polymer composite, which includes silicon-based particles; and a polymer coating layer formed on the silicon-based particles, in which the polymer coating layer includes metal-substituted poly(acrylic acid) in which hydrogen atoms in carboxyl groups of the poly(acrylic acid) chain are substituted with one or more selected from the group consisting of K, Na and Li.
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公开(公告)号：US10476068B2
公开(公告)日：2019-11-12
申请号：US15555858
申请日：2016-09-29
Applicant: LG Chem, Ltd.
Inventor： Seung Hyun Chung , Chae Ah Kim , Se Mi Park
Abstract: The present invention relates to a battery module that includes a probe for detecting expansion of a battery cell. More particularly, the present invention relates to a battery module including: two or more of rechargeable battery cells; a sensing probe provided at an external surface of at least one of the battery cells to sense a local expansion change of the battery cell and transmitting a signal; and a controller receiving the signal from the sensing probe, estimating an internal pressure of the battery cell from the received signal, and generating a warning signal to assure safety of the battery module when the estimated internal pressure exceeds a threshold pressure level.
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