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公开(公告)号：US12062777B2
公开(公告)日：2024-08-13
申请号：US16973201
申请日：2020-01-23
申请人： LG Chem, Ltd.
发明人： Do Hwa Jung , Tae Gyun Noh , Ki Woong Kim , Woo Sirl Lee , Yoon Jae Lee , Jung Whan Song
IPC分类号： H01M4/525 , H01M4/36 , H01M4/587 , H01M10/0525 , H01M10/0567
CPC分类号： H01M4/364 , H01M4/525 , H01M4/587 , H01M10/0525 , H01M10/0567 , H01M2300/004
摘要： The present invention provides a lithium secondary battery which includes a positive electrode including a first lithium cobalt oxide and a second lithium cobalt oxide which have different average particle diameters (D50) from each other, a negative electrode including first graphite and second graphite which have different average particle diameters (D50) from each other, and an electrolyte including a a first additive as a nitrile-based compound, wherein the first lithium cobalt oxide and the second lithium cobalt oxide each independently contain aluminum in a concentration of 2,500 ppm to 4,000 ppm.
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公开(公告)号：US12062756B2
公开(公告)日：2024-08-13
申请号：US16638673
申请日：2018-11-30
申请人： LG Chem, Ltd.
发明人： Jeong Woo Oh , Kyoung Ho Ahn , Chul Haeng Lee , Jung Hoon Lee
IPC分类号： H01M10/0565 , H01M10/052 , H01M10/0567
CPC分类号： H01M10/0565 , H01M10/052 , H01M10/0567 , H01M2300/0085
摘要： The present invention provides a composition for a gel polymer electrolyte, a gel polymer electrolyte prepared using the same, and a lithium secondary battery, the composition including: an oligomer represented by Formula 1, an additive, a polymerization initiator, a lithium salt, and a non-aqueous solvent. The additive includes at least one compound selected from the group consisting of an imide-based compound, a compound having a Si—N-based bond, a nitrile-based compound, a phosphate-based compound, and a borate-based compound.
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63.发明公开公开(公告)号：US20240266512A1
公开(公告)日：2024-08-08
申请号：US18567171
申请日：2022-08-12
申请人： LG Chem, LTD.
发明人： Min Hee Son , Hyuck Lee , Duck Gyun Mok
CPC分类号： H01M4/366 , C01G53/50 , H01M4/131 , H01M4/38 , H01M4/525 , C01P2002/50 , C01P2004/80 , C01P2006/40 , H01M2004/028
摘要： A method for producing a positive electrode active material process which can minimize deterioration, occurring in a washing process, on the surface of a positive electrode active material and effectively control residual lithium. The method includes (A) preparing a lithium transition metal oxide; and (B) mixing the lithium transition metal oxide and a washing solution, washing the mixture, and then drying the mixture, wherein the washing solution contains a phosphorus-based compound and is a basic solution, and the phosphorus-based compound is contained in the washing solution such that the amount of phosphorus is 100-1,000 ppm in weight based on the lithium transition metal oxide, and to a positive electrode active material produced by the method.
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公开(公告)号：US20240261761A1
公开(公告)日：2024-08-08
申请号：US18293084
申请日：2022-08-19
申请人： LG Chem, Ltd.
发明人： Soonhee Kang , Beomshin Cho , Kyungrok Ham , Hyungsam Choi , Seonjung Jung
IPC分类号： B01J20/26 , B01J20/28 , B01J20/30 , C08F220/06
CPC分类号： B01J20/261 , B01J20/28047 , B01J20/3021 , C08F220/06 , B01J2220/68
摘要： Provided are a superabsorbent polymer and a method of preparing the same, more particularly, a superabsorbent polymer exhibiting an improved bacterial growth-inhibitory property without deterioration in absorption performances of the superabsorbent polymer, and a method of preparing the same. Such superabsorbent polymer comprises a crosslinked polymer of an acrylic acid-based monomer; a polymerizable antibacterial monomer represented by the following Formula 1; and a crosslinking agent:
wherein all the variables are described herein.-
公开(公告)号：US12057565B2
公开(公告)日：2024-08-06
申请号：US17274111
申请日：2020-07-28
申请人： LG CHEM, LTD.
发明人： Seongmo Koo , Kwan Soo Lee , Jaekyo Noh
IPC分类号： H01M4/133 , H01M4/02 , H01M4/36 , H01M4/587 , H01M10/0525 , H01M10/0587 , H01M10/42 , H01M50/46 , H01M50/531
CPC分类号： H01M4/133 , H01M4/364 , H01M4/587 , H01M10/0525 , H01M10/0587 , H01M50/46 , H01M50/531 , H01M2004/027 , H01M2010/4292
摘要： The present disclosure relates to a jelly-roll type electrode assembly in which a long sheet-type cathode and a long sheet-type anode are wound in a state where a separator is interposed between the cathode and the anode, wherein the anode is configured such that an anode mixture is formed on both sides of an anode current collector, and the anode current collector is configured such that when winding to form an electrode assembly, if a side that winds inward is referred to a first side and a side that winds outward is referred to a second side, an active material of a first anode mixture coated on the first side contains 70 wt % or more artificial graphite as an active material based on the total weight of the active material, and an active material of a second anode mixture coated on the second side contains 70 wt % or more natural graphite as an active material based on the total weight of the active material.
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公开(公告)号：US12055524B2
公开(公告)日：2024-08-06
申请号：US16959668
申请日：2019-03-28
申请人： LG CHEM, LTD.
发明人： Hyun-Sup Lee , Yeon-Soo Kim , Sang-Eun Kim , Dong-Wook Sung , Dae-Sung Jang , Myung-Han Lee , Je-An Lee
IPC分类号： G01N3/18 , H01M50/403
CPC分类号： G01N3/18 , H01M50/403 , G01N2203/0226
摘要： A method for evaluating the stability of a separator, including the steps of: preparing a separator; determining the elongation properties of the separator by using dynamic mechanical analysis (DMA); comparing the determined value with the stability standards of the elongation properties; and classifying a separator as a stability-passing separator when the determined values satisfy the stability standards, and classifying a separator as a stability-failing separator when the determined values do not satisfy the stability standards, after the comparison.
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公开(公告)号：US20240251668A1
公开(公告)日：2024-07-25
申请号：US18037606
申请日：2022-02-22
申请人： LG CHEM, LTD.
发明人： Min Woo JUNG , Dong Hoon LEE , Sang Duk SUH , Jungha LEE , Su Jin HAN , Seulchan PARK , Sunghyun HWANG
IPC分类号： H10K85/60 , C07D405/04 , C07D405/14 , C07D409/14 , C09K11/06 , H10K50/11
CPC分类号： H10K85/654 , C07D405/04 , C07D405/14 , C07D409/14 , C09K11/06 , H10K85/615 , H10K85/6574 , H10K85/6576 , C09K2211/1018 , H10K50/11
摘要： Provided is a novel compound of Chemical Formula 1:
where Y is O or S; D is deuterium, L is a single bond, substituted or unsubstituted C6-60 arylene, or substituted or unsubstituted C2-60 heteroarylene containing at least one of N, O and S; L1 and L2 are each independently a single bond or substituted or unsubstituted C6-60 arylene; Ar1 and Ar2 are each independently substituted or unsubstituted C6-60 aryl or substituted or unsubstituted C2-60 heteroaryl containing at least one of N, O and S; and R is hydrogen or C6-60 aryl that is unsubstituted or substituted with deuterium and an organic light-emitting device including the same. An organic light-emitting device containing the compound of Chemical Formula 1 as a host material of the light emitting layer exhibits significantly improved lifespan without a decrease in efficiency.-
公开(公告)号：US20240250381A1
公开(公告)日：2024-07-25
申请号：US18289632
申请日：2022-05-09
申请人： LG Chem, Ltd.
发明人： Sung-Jae Han , Joo-Sung Lee , Sung Cik Mun , A-Young Lee , Kil-An Jung
IPC分类号： H01M50/403 , H01M10/0525 , H01M50/417 , H01M50/431 , H01M50/451 , H01M50/491
CPC分类号： H01M50/403 , H01M10/0525 , H01M50/417 , H01M50/431 , H01M50/451 , H01M50/491
摘要： The present disclosure relates to a crosslinked structure-containing separator for a lithium secondary battery, including: a crosslinked structure-containing polyolefin porous support having a crosslinked structure including polymer chains interconnected directly with one another; and a photoinitiator having an oxidation potential at least 0.02 V higher than the fully charged voltage of the lithium secondary battery, a method for manufacturing the same, and a lithium secondary battery including the separator. The lithium secondary battery including the separator has excellent high-temperature safety and can improve the problem of degradation of capacity after high-temperature storage.
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公开(公告)号：US20240247110A1
公开(公告)日：2024-07-25
申请号：US18027543
申请日：2021-12-17
申请人： LG Chem, Ltd.
发明人： Hyemin Lee , Jungmin Sohn , Jihye Ryu , Chang Hun Han , Taebin Ahn
CPC分类号： C08J3/075 , C08J3/12 , C08J3/245 , C08J9/122 , C08K3/36 , C08K5/0025 , C08K5/098 , C08J2201/026 , C08J2205/022 , C08J2205/044 , C08J2333/02
摘要： The present disclosure relates to a super absorbent polymer and a method for preparing the same. More specifically, it relates to a super absorbent polymer including a plurality of micropores, specifically an average of 7 or more micropores per particle, having an average diameter of 100 μm or less and a maximum diameter of 300 μm or less, and thus exhibiting an improved absorption rate and a high surface tension, and a method for preparing the super absorbent polymer.
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公开(公告)号：US20240247089A1
公开(公告)日：2024-07-25
申请号：US18576260
申请日：2022-06-27
申请人： LG Chem, Ltd.
发明人： Ji Seok Lee , Leehyeon Baek , Hyungsam Choi , Seonjung Jung , Soonhee Kang , Haesung Yun , Yoon Hyung Hur
IPC分类号： C08F220/34
CPC分类号： C08F220/34
摘要： Provided is an antibacterial copolymer, more particularly, an antibacterial copolymer continuously maintaining excellent antibacterial property, wherein the antibacterial copolymer comprises a first repeating unit represented by the following Formula 1; and a second repeating unit derived from a monomer having one or more ethylenically unsaturated groups,
wherein all the variables are described herein.
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