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1.发明公开公开(公告)号：US20240170724A1
公开(公告)日：2024-05-23
申请号：US18504412
申请日：2023-11-08
发明人： Ko Eun Kim , Sung Ho Ban , Yoon Sung Lee , Jun Ki Rhee , Hui Beom Nam , Hyeon Gyu Moon , Nam-Soon Choi , Jeong Woo Lee , Sung You Hong
IPC分类号： H01M10/0567 , H01M4/38 , H01M4/583 , H01M10/052 , H01M10/0568 , H01M10/0569 , H01M50/46 , H01M4/02
CPC分类号： H01M10/0567 , H01M4/386 , H01M4/583 , H01M10/052 , H01M10/0568 , H01M10/0569 , H01M50/46 , H01M2004/027 , H01M2004/028 , H01M2300/0028
摘要： An embodiment electrolyte solution includes a lithium salt, a solvent, and a functional additive, wherein the functional additive includes an electrode film additive of 2-(dodec-1-en-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane represented by
An embodiment lithium secondary battery includes this electrolyte solution, a positive electrode including a positive-electrode active material including Ni, Co, and Mn, a negative electrode including a negative-electrode active material including a carbon (C)-based material or a silicon (Si)-based material, and a separator interposed between the positive electrode and the negative electrode.-
2.发明公开公开(公告)号：US20240105918A1
公开(公告)日：2024-03-28
申请号：US18217862
申请日：2023-07-03
申请人： Hyundai Motor Company , Kia Corporation , Incheon National University Research & Business Foundation
发明人： Seung Min Oh , Sung Ho Ban , Sang Hun Lee , Chang Hoon Song , Yoon Sung Lee , Ko Eun Kim , Van Chuong Ho , Jun Young Mun
CPC分类号： H01M4/366 , C01G53/50 , H01M4/131 , H01M4/133 , H01M4/505 , H01M4/525 , H01M4/587 , H01M2004/021
摘要： A positive electrode material for a lithium secondary battery and a manufacturing method therefor are provided. The positive electrode material may have carbon nanotubes stably attached to a surface of an active material and may exhibit increased electron conductivity and improved surface stability. The positive electrode material for a lithium secondary battery may comprises: a positive electrode active material core comprising a Li—Ni—Co—Mn-M-O-based material, where M is a transition metal; and a carbon nanotube coating layer on a surface of the positive electrode active material core. Carbon nanotubes (CNT) may be in an amount of 1-5 wt %, based on 100 wt % of the positive electrode active material core.
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公开(公告)号：US20240055582A1
公开(公告)日：2024-02-15
申请号：US18137252
申请日：2023-04-20
申请人： Hyundai Motor Company , Kia Corporation , University-Industry Cooperation Group of Kyung Hee University
发明人： Chang Hoon Song , Yoon Sung Lee , Sung Ho Ban , Sang Hun Lee , Yong Hoon Kim , Ko Eun Kim , Da Bin Jang , Ha Eun Lee , Hui Beom Nam , Jun Ki Rhee , Seung Min Oh , Sung Min Park , Hyo Bin Lee , Tae Hee Kim , Min Sik Park
CPC分类号： H01M4/366 , H01M4/525 , H01M4/5825 , H01M4/485 , H01M4/0471 , H01M2004/028
摘要： Disclosed are a positive electrode additive material for a lithium secondary battery having an enhancement in atmospheric stability, a method for preparing the same, and a positive electrode for a lithium secondary battery including the same. The positive electrode material includes an core including a lithium component, and a coating layer formed on a surface of the core and including a compound having a formula of LiM′O3 wherein M′ is Ta or Nb.
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4.发明申请公开(公告)号：US20220285730A1
公开(公告)日：2022-09-08
申请号：US17468193
申请日：2021-09-07
申请人： Hyundai Motor Company , Kia Corporation , UNIST (Ulsan National Institute of Science and Technology)
发明人： Ji Eun Lee , Jun Ki Rhee , Seung Min Oh , Yoon Sung Lee , Sung Ho Ban , Sang Hun Lee , Woo Young Jin , Sang Mok Park , Ko Eun Kim , Hyeon Gyu Moon , Hui Beom Nam , Hyun Soo Ma , Nam Soon Choi
IPC分类号： H01M10/0567 , H01M10/0525
摘要： Disclosed is an additive for improving the electrochemical properties of a lithium secondary battery.
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公开(公告)号：US20220115697A1
公开(公告)日：2022-04-14
申请号：US17340718
申请日：2021-06-07
申请人： HYUNDAI MOTOR COMPANY , KIA CORPORATION , UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
发明人： Yoon Sung Lee , Seung Min Oh , Ji Eun Lee , Sung Ho Ban , Ik Kyu Kim , Ko Eun Kim , Sang Kyu Kwak , Nam Soon Choi , Woo Gyum Kim , Hyeon Gyu Moon , Sung You Hong , Dae Yeon Hwang
IPC分类号： H01M10/0567 , H01M10/0569 , H01M10/0525 , H01M4/583 , H01M4/38
摘要： The electrolyte for a lithium secondary battery includes: a lithium salt; a solvent; and a functional additive, wherein the functional additive includes 1,2-bis((maleimido)ethane, represented by the following formula 1:
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公开(公告)号：US20220115696A1
公开(公告)日：2022-04-14
申请号：US17339328
申请日：2021-06-04
申请人： HYUNDAI MOTOR COMPANY , KIA CORPORATION , UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
发明人： Yoon Sung LEE , Ik Kyu Kim , Seung Min Oh , Sung Ho Ban , Sang Mok Park , Ko Eun Kim , Sang Kyu Kwak , Nam Soon Choi , Hyeon Gyu Moon , Seo Young Jeong , Sung You Hong , Dae Yeon Hwang
IPC分类号： H01M10/0567 , H01M10/42 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M4/587 , H01M4/38 , H01M4/525 , H01M4/505 , C07C381/00 , C07F5/04
摘要： The electrolyte for a lithium secondary battery comprises: a lithium salt; a solvent; and a functional additive, wherein the functional additive comprises naphthalen-1-yl sulfurofluoridate, represented by the following formula 1:
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7.发明公开公开(公告)号：US20240178450A1
公开(公告)日：2024-05-30
申请号：US18504499
申请日：2023-11-08
发明人： Ko Eun Kim , Sung Ho Ban , Yoon Sung Lee , Jun Ki Rhee , Hui Beom Nam , Hyeon Gyu Moon , Nam-Soon Choi , Jeong Woo Lee , Sung You Hong
IPC分类号： H01M10/0567 , C07F7/18 , H01M10/0525 , H01M10/42
CPC分类号： H01M10/0567 , C07F7/1804 , H01M10/0525 , H01M10/4235 , H01M2300/004
摘要： An embodiment electrolyte solution includes a lithium salt, a solvent, and a functional additive, wherein the functional additive includes 4-((tert-butoxydimethylsilyl)methyl)-5-methyl-1,3-dioxol-2-one represented by
as an electrode film additive. An embodiment lithium secondary battery includes the above-described electrolyte solution, a positive electrode including a positive electrode active material including Ni, Co, and Mn, a negative electrode including a carbon-based negative electrode active material or a silicon-based negative electrode active material, and a separator interposed between the positive electrode and the negative electrode.-
8.发明公开公开(公告)号：US20240120477A1
公开(公告)日：2024-04-11
申请号：US18219370
申请日：2023-07-07
申请人： HYUNDAI MOTOR COMPANY , KIA CORPORATION , INCHEON NATIONAL UNIVERSITY RESEARCH & BUSINESS FOUNDATION
发明人： Seung Min Oh , Sung Ho Ban , Sang Hun Lee , Chang Hoon Song , Yoon Sung Lee , Ko Eun Kim , Van Chuong Ho , Jun Young Mun
CPC分类号： H01M4/525 , H01M4/0471 , H01M4/485 , H01M4/505 , H01M4/625 , H01M2004/028
摘要： A positive electrode material for a lithium secondary battery has improved electron conductivity and surface stability because oxidation-treated carbon nanotubes are stably attached to the surface of an active material. According to one embodiment the positive electrode material includes a positive electrode active material core made of a Li—Ni—Co—Mn-M-O-based material (M=transition metal) and an oxidized carbon nanotube coating layer formed on the surface of the positive electrode active material core and including 1% to 3% by weight of oxidation-treated carbon nanotubes (OCNT) relative to 100% by weight of the positive electrode active material core.
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公开(公告)号：US11769880B2
公开(公告)日：2023-09-26
申请号：US17460036
申请日：2021-08-27
发明人： Sang Mok Park , Seung Min Oh , Woo Young Jin , Ji Eun Lee , Sang Hun Lee , Ko Eun Kim , Jun Ki Rhee , Yoon Sung Lee
CPC分类号： H01M4/60 , H01M4/0471 , H01M4/364 , H01M4/621 , H01M4/624
摘要： A method of mixing a cathode active material in a process of manufacturing a cathode of a lithium secondary battery is provided. The method includes a preparation step of preparing a lithium compound removal solution in which PAA (polyacrylic acid) is mixed with a solvent, a removal step of reacting the lithium compound removal solution with the cathode active material, on a surface of which a lithium compound is present, thus removing the lithium compound present on the surface of the cathode active material, and a mixing step of mixing the cathode active material, which is mixed with the lithium compound removal solution, with a conductive material and a binder.
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公开(公告)号：US11764404B2
公开(公告)日：2023-09-19
申请号：US17338084
申请日：2021-06-03
申请人： HYUNDAI MOTOR COMPANY , KIA CORPORATION , The Industry & Academic Cooperation in Chungnam National University (IAC)
发明人： Ko Eun Kim , Seung Min Oh , Yoon Sung Lee , Jun Ki Rhee , Sung Ho Ban , Seung Wan Song , Gyeong Jun Chung
IPC分类号： H01M10/0569 , H01M10/0567
CPC分类号： H01M10/0569 , H01M10/0567 , H01M2300/0028 , H01M2300/0051
摘要： The electrolyte for a lithium secondary battery includes: a lithium salt; a solvent; and a functional additive, wherein the functional additive includes: at least one high-voltage additive selected from a group consisting of lithium bis(phthalato)borate, represented by the following formula 1; hexafluoroglutaric anhydride, represented by the following formula 2; and phosphoric acid tris(2,2,2-trifluoroethyl)ester, represented by the following formula 3:
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