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1.发明公开公开(公告)号：US20240047687A1
公开(公告)日：2024-02-08
申请号：US18377994
申请日：2023-10-09
发明人： Dong Hyun Kim , Houng Sik Yoo , Seong Kyun Kang , Gye Min Kwon , Hyeon Choi
IPC分类号： H01M4/62 , C01B32/174 , C09C1/56 , H01M10/0525 , H01B1/24
CPC分类号： H01M4/625 , C01B32/174 , C09C1/56 , H01M10/0525 , H01B1/24 , C01B2202/22 , C01B2202/32 , C01P2006/12 , C01P2006/40 , H01M2004/028
摘要： A conductive material dispersion includes a carbon-based conductive material, a main dispersant, an auxiliary dispersant, and a dispersion medium, wherein the main dispersant is a nitrile-based copolymer and the auxiliary dispersant is a copolymer including an oxyalkylene unit and at least one selected from the group consisting of a styrene unit and an alkylene unit.
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公开(公告)号：US20230335740A1
公开(公告)日：2023-10-19
申请号：US18025058
申请日：2022-03-17
发明人： Joo Yeon Ha , Houng Sik Yoo , Dong Hyun Kim , Hyeon Choi
IPC分类号： H01M4/62 , H01M10/0525 , C09D7/65 , C09D127/16 , H01M4/58 , C09D5/24 , C09D7/61 , C09D7/45
CPC分类号： H01M4/623 , C09D5/24 , C09D7/45 , C09D7/61 , C09D7/65 , C09D127/16 , H01M4/5825 , H01M4/625 , H01M10/0525 , H01M2004/028
摘要： A positive electrode slurry composition, a positive electrode and a secondary battery including the same are disclosed herein. In some embodiments, a slurry composition includes a lithium iron phosphate-based positive electrode active material, a binder, a conductive agent, a dispersant, and a solvent, wherein the dispersant includes a nitrile-based copolymer and a polymer dispersant containing an oxyalkylene unit, wherein the oxyalkylene unit is present in an amount of 60 wt% or more, based on the total weight of the polymer dispersant.
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3.发明申请公开(公告)号：US20230113439A1
公开(公告)日：2023-04-13
申请号：US17914247
申请日：2021-10-27
发明人： Young Gyu Moon , Kyoung Ho Kim , Dong Hyun Kim , Young Geun Kim
摘要： The present technology relate to an equipment and method for drying an electrode substrate including a screen for distributing the flow of hot air, and according to the present technology, it is possible to uniformly dry the electrode substrate in the width direction.
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公开(公告)号：US20220166027A1
公开(公告)日：2022-05-26
申请号：US17441935
申请日：2020-08-21
发明人： Dong Hyun Kim , Houng Sik Yoo , Il Jae Moon , Sang Hoon Choy , Hyeon Choi
摘要： A carbon nanotube dispersion includes carbon nanotubes (CNT) having a Brunauer-Emmett-Teller (BET) specific surface area of 800 m2/g or more, a dispersant, and a water-based solvent, wherein the dispersant includes a polymer dispersant containing an amine and a phenolic compound containing two or more aromatic rings.
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公开(公告)号：US20220158194A1
公开(公告)日：2022-05-19
申请号：US17442876
申请日：2020-03-27
发明人： Tae Gon Kim , Wang Mo Jung , Houng Sik Yoo , Bo Ram Lee , Dong Hyun Kim , Hak Yoon Kim
IPC分类号： H01M4/62 , H01M10/052 , H01M4/02
摘要： The present invention relates to an electrode and a secondary battery including the same, the electrode including an electrode active material layer, wherein: the electrode active material layer includes an electrode active material, a hydrogenated nitrile butadiene rubber, and a conductive agent; the conductive agent includes a carbon nanotube structure in which 2 to 5,000 single-walled carbon nanotube units are bonded; and the carbon nanotube structure is included in the electrode active material layer in an amount of 0.01-0.5 wt %.
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公开(公告)号：US11984601B2
公开(公告)日：2024-05-14
申请号：US17051689
申请日：2019-08-21
发明人： Houng Sik Yoo , Hyeon Choi , Dong Hyun Kim , Hyun Sik Chae , Sang Hoon Choy , Hyung Suk Cho
IPC分类号： H01M4/62 , C01B32/174 , H01M4/02 , H01M10/0525
CPC分类号： H01M4/625 , C01B32/174 , H01M10/0525 , C01B2202/22 , C01B2202/28 , C01B2202/32 , H01M2004/028
摘要： A conductive material dispersion liquid, and an electrode and a lithium secondary battery manufactured using the same. The conductive material dispersion liquid includes a carbon-based conductive material, a dispersant, and a dispersion medium. The dispersant is a copolymer including a first repeating unit represented by Chemical Formula 1, a second repeating unit represented by Chemical Formula 2, and a third repeating unit represented by Chemical Formula 3, and the dispersion medium is a non-aqueous solvent.
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公开(公告)号：US20220209239A1
公开(公告)日：2022-06-30
申请号：US17604084
申请日：2020-05-12
发明人： Dong Hyun Kim , Houng Sik Yoo , Seong Kyun Kang , Gye Min Kwon , Hyeon Choi
IPC分类号： H01M4/62 , C01B32/174 , C09C1/56 , H01M10/0525
摘要： A conductive material dispersion includes a carbon-based conductive material, a main dispersant, an auxiliary dispersant, and a dispersion medium, wherein the main dispersant is a nitrile-based copolymer and the auxiliary dispersant is a copolymer including an oxyalkylene unit and at least one selected from the group consisting of a styrene unit and an alkylene unit.
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公开(公告)号：US12132207B2
公开(公告)日：2024-10-29
申请号：US18025058
申请日：2022-03-17
发明人： Joo Yeon Ha , Houng Sik Yoo , Dong Hyun Kim , Hyeon Choi
IPC分类号： H01B1/24 , C09D5/24 , C09D7/45 , C09D7/61 , C09D7/65 , C09D127/16 , H01M4/58 , H01M4/60 , H01M4/62 , H01M10/0525 , H01M4/02
CPC分类号： H01M4/623 , C09D5/24 , C09D7/45 , C09D7/61 , C09D7/65 , C09D127/16 , H01M4/5825 , H01M4/625 , H01M10/0525 , H01M2004/028
摘要： A positive electrode slurry composition, a positive electrode and a secondary battery including the same are disclosed herein. In some embodiments, a slurry composition includes a lithium iron phosphate-based positive electrode active material, a binder, a conductive agent, a dispersant, and a solvent, wherein the dispersant includes a nitrile-based copolymer and a polymer dispersant containing an oxyalkylene unit, wherein the oxyalkylene unit is present in an amount of 60 wt % or more, based on the total weight of the polymer dispersant.
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公开(公告)号：US11824200B2
公开(公告)日：2023-11-21
申请号：US17604084
申请日：2020-05-12
发明人： Dong Hyun Kim , Houng Sik Yoo , Seong Kyun Kang , Gye Min Kwon , Hyeon Choi
IPC分类号： H01M4/60 , H01B1/24 , H01M4/62 , C01B32/174 , C09C1/56 , H01M10/0525 , H01M4/02
CPC分类号： H01M4/625 , C01B32/174 , C09C1/56 , H01B1/24 , H01M10/0525 , C01B2202/22 , C01B2202/32 , C01P2006/12 , C01P2006/40 , H01M2004/028
摘要： A conductive material dispersion includes a carbon-based conductive material, a main dispersant, an auxiliary dispersant, and a dispersion medium, wherein the main dispersant is a nitrile-based copolymer and the auxiliary dispersant is a copolymer including an oxyalkylene unit and at least one selected from the group consisting of a styrene unit and an alkylene unit.
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公开(公告)号：US20230348734A1
公开(公告)日：2023-11-02
申请号：US18025783
申请日：2022-05-25
发明人： Hyo Sook Joo , Houng Sik Yoo , Dong Hyun Kim , Il Jae Moon , Hyeon Choi , Woo Ha Kim , Sung Soo Yoon
IPC分类号： C09D5/24 , C09D7/65 , C09D7/63 , C09D7/45 , C09D7/61 , C09D7/40 , C09D131/04 , C09D115/00 , H01M4/62
CPC分类号： C09D5/24 , C09D7/65 , C09D7/63 , C09D7/45 , C09D7/61 , C09D7/70 , C09D131/04 , C09D115/005 , H01M4/625 , H01M2004/028
摘要： Provided is a conductive material dispersion comprising single-walled carbon nanotubes, a dispersant, a dispersion aid, and a dispersion medium, wherein the dispersant comprises polyvinyl butyral and hydrogenated nitrile butadiene rubber, and the dispersion aid comprises a compound represented by Formula 1.
A-(R)n [Formula 1]
In Formula 1, A is a structure having a carbon number of 16 to 50 carbon number and comprising four or more aromatic rings and nitrogen, R is a structure comprising an anionic functional group, and n is an integer of 1 to 5.
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