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公开(公告)号:US10686185B2
公开(公告)日:2020-06-16
申请号:US15760066
申请日:2016-08-26
申请人: LG CHEM, LTD.
发明人: Houngsik Yoo , Jong Won Lee , Dong Hyun Kim , Gyemin Kwon , Byoung Hoon Ahn , Yelin Kim , Sang Hoon Choy , Hyeon Choi , Jungkeun Yoo
IPC分类号: H01M4/139 , H01M4/04 , H01M4/62 , C01B32/174 , H01M10/0525
摘要: The present disclosure relates to a carbon nanotube dispersion including entangled-type carbon nanotubes, a dispersion medium, and partially hydrogenated nitrile rubber having a residual double bond (RDB) value of 0.5% by weight to 40% by weight calculated according to the following Mathematical Formula 1, wherein dispersed particle diameters of the carbon nanotubes have particle size distribution D50 of 2 μm to 5 μm, a method for preparing the same, and methods for preparing electrode slurry and an electrode using the same.
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公开(公告)号:US10468685B2
公开(公告)日:2019-11-05
申请号:US15762938
申请日:2016-07-27
申请人: LG CHEM, LTD.
发明人: Houngsik Yoo , Jongheon Seol , Jong Won Lee , Dong Hyun Kim , Gyemin Kwon , Yelin Kim , Jungkeun Yoo , Dong Hyun Cho , Sang Hoon Choy , Hyeon Choi , Kyungyeon Kang , Jihee Woo
IPC分类号: H01B1/18 , H01M4/62 , H01M10/0525 , C01B32/174 , H01M4/139 , B82Y30/00 , B82Y40/00
摘要: The present disclosure relates to a carbon nanotube dispersion liquid comprising bundle-type carbon nanotubes; a dispersion medium; and a polyvinyl butyral resin having a weight average molecular weight of greater than 50,000, a method for preparing the same, methods for preparing electrode slurry and an electrode using the same, and an electrode and a secondary battery prepared using the carbon nanotube dispersion liquid.
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公开(公告)号:US10141574B2
公开(公告)日:2018-11-27
申请号:US15577099
申请日:2016-09-05
申请人: LG CHEM, LTD.
发明人: Houngsik Yoo , Kyungyeon Kang , Jongheon Seol , Jong Won Lee , Dong Hyun Kim , Gyemin Kwon , Jihee Woo , Yelin Kim , Dong Hyun Cho , Sang Hoon Choy , Hyeon Choi
IPC分类号: H01M4/62 , C08C19/02 , C09D109/02 , H01M4/04 , H01M4/36 , C09C1/44 , C08L15/00 , H01M4/13 , C01B32/174 , B82Y30/00 , B82Y40/00
摘要: The present disclosure relates to a carbon nanotube dispersion including carbon nanotubes, a dispersion medium, and partially hydrogenated nitrile rubber having a residual double bond (RDB) value of 0.5% by weight to 40% by weight calculated according to Mathematical Formula 1, a method for preparing the same, and methods for preparing electrode slurry and an electrode using the same.
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公开(公告)号:US10857524B2
公开(公告)日:2020-12-08
申请号:US16080898
申请日:2017-03-21
申请人: LG CHEM, LTD.
发明人: Kyung Yeon Kang , Yelin Kim , Jihee Woo , Jung Keun Yoo , Dong Hyun Cho
IPC分类号: C01B32/158 , B01J23/84 , C08J5/00 , C08K3/04 , C08K7/22 , H01M4/62 , H01M10/0525 , C01B32/162 , C01B32/17 , D01F9/127 , B01J23/847
摘要: The carbon nanotubes according to the present invention can provide higher conductivity by allowing the BET and crystal size to satisfy the conditions expressed by formula 1 below, and consequently, can improve the conductivity of a carbon composite material containing the carbon nanotubes. Lc×[Specific surface area of CNT (cm2/g)]1/2>80 [Formula 1] wherein, Lc is crystal size measured by X-ray diffraction.
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公开(公告)号:US10541067B2
公开(公告)日:2020-01-21
申请号:US15747606
申请日:2016-10-17
申请人: LG CHEM, LTD.
发明人: Kyung Yeon Kang , Yelin Kim , Jihee Woo , Seungyong Lee , Hyungsik Jang , Dong Hyun Cho , Sang Hoon Choy
IPC分类号: H01B1/24 , B30B11/24 , C04B35/626 , C04B35/83 , C01B32/00 , B30B11/22 , C01B32/991 , B01F7/08 , C04B35/52
摘要: The carbon nanotube pellets according to the present invention are produced by using only a small amount of solvent and have increased apparent density. The present invention can improve the problems of the change of the content generated by scattering of powders and safety issues by using carbon nanotubes in the form of pellet rather than carbon nanotubes in the form of powder in composite materials. And since the density of the pellet form is higher than that of the powder form, transport, transfer and improvement become easier. Therefore, it can be more effectively applied to the manufacturing of composite materials.
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