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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：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.-
公开(公告)号：US20240290984A1
公开(公告)日：2024-08-29
申请号：US18025326
申请日：2022-04-28
发明人： Il Jae Moon , Woo Ha Kim , Sung Soo Yoon
CPC分类号： H01M4/625 , H01M4/0416 , H01M4/366 , H01M4/583 , H01M2004/027
摘要： Provided is a negative electrode including a negative electrode active material layer, wherein the negative electrode active material layer includes a negative electrode active material, a binder, a conductive agent, and a dispersant, wherein the conductive agent includes a carbon nanotube structure in which a plurality of single-walled carbon nanotube units are bonded side by side, the carbon nanotube structure has an average length of 1 μm to 20 μm, and QBR according to Equation 1 is in a range of 1 to 1.75
QBR
=
Bs
/
Bf
.
[
Equation
1
]-
公开(公告)号：US12113220B2
公开(公告)日：2024-10-08
申请号：US17850570
申请日：2022-06-27
发明人： Taek Soo Lee , Chang Wan Koo , Sang Hoon Choi , Jung Min Yang , Il Jae Moon
CPC分类号： H01M4/587 , H01M4/133 , H01M4/364 , H01M4/366 , H01M4/621 , H01M4/624 , H01M10/0525 , H01M2004/027
摘要： The present disclosure relates to a multilayer negative electrode comprising a negative electrode current collector configured to transfer electrons between an outer lead and a negative electrode active material, a first negative electrode mixture layer formed on one surface or both surfaces of the current collector and containing natural graphite as a negative electrode active material and a second negative electrode mixture layer formed on the first negative electrode mixture layer and containing artificial graphite as a negative electrode active material, and a lithium secondary battery including the same.
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公开(公告)号：US20220320518A1
公开(公告)日：2022-10-06
申请号：US17608894
申请日：2020-09-29
发明人： Tae Gon Kim , Hyung Man Cho , Il Jae Moon , Sun Wook Park , Min Kwak
IPC分类号： H01M4/62 , H01M10/0525
摘要： The present invention relates to an electrode and a secondary battery including the same, the electrode including an electrode active material layer, the electrode active material layer including an electrode active material and a conductive agent, the conductive agent including: a multi-walled carbon nanotube unit; and a carbon nanotube structure in which 2 to 5,000 single-walled carbon nanotube units are bonded to each other, wherein the carbon nanotube structure is contained in the electrode active material layer in an amount of 0.01 wt % to 0.5 wt %.
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公开(公告)号：US20220238886A1
公开(公告)日：2022-07-28
申请号：US17616417
申请日：2020-07-31
发明人： Tae Gon Kim , Hyung Man Cho , Il Jae Moon , Sun Wook Park , Min Kwak
IPC分类号： H01M4/62 , H01M4/48 , H01M4/134 , H01M4/1395 , H01M10/0525
摘要： A negative electrode includes a negative electrode active material layer, wherein the negative electrode active material layer includes a negative electrode active material and a conductive agent, wherein the negative electrode active material includes a silicon-based active material, the silicon-based active material includes SiOx(0≤x
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