公开(公告)号：US10862124B2

公开(公告)日：2020-12-08

申请号：US14902992

申请日：2014-07-31

申请人： LG Chem, Ltd.

发明人： Kwon Nam Sohn ,  Kil Sun Lee ,  Won Jong Kwon ,  Byung Hun Oh ,  Su Jin Park ,  In Young Kim

IPC分类号： H01M4/62 ,  H01M10/0525 ,  H01M4/66 ,  H01B1/24 ,  H01M4/13 ,  H01M4/04 ,  H01M4/139 ,  C08K5/06 ,  C08K5/42 ,  H01M4/36 ,  H01M4/133 ,  H01M10/052 ,  H01M4/587 ,  H01M4/485 ,  B82Y30/00

摘要： The present invention relates to a conducting material composition which is allowed to provide an electrode having a higher content of uniformly dispersed carbon nanotubes, thereby providing a lithium rechargeable batteryelectrode having more improved electrical characteristics and life characteristics, a slurry composition for forming a lithium rechargeable batteryelectrode using the same, and a lithium rechargeable battery. The conducting material composition includes carbon nanotube; and a dispersing agent including a plurality of polyaromatic hydrocarbon oxides, in which the dispersing agent contains the polyaromatic hydrocarbon oxides having a molecular weight of 300 to 1000 in an amount of 60% by weight or more.

公开(公告)号：US10424788B2

公开(公告)日：2019-09-24

申请号：US15520000

申请日：2015-10-12

申请人： LG Chem, Ltd.

发明人： Su Jin Park ,  Byung Hun Oh ,  Eun Kyung Kim ,  Sun Young Shin ,  Hyun Wook Kim

IPC分类号： H01M4/583 ,  H01M4/133 ,  H01M4/587 ,  H01M4/62 ,  H01M2/14 ,  H01M4/04 ,  H01M4/66 ,  H01M10/052 ,  H01M4/36 ,  H01M4/02

摘要： The present invention relates to a negative electrode for a secondary battery, an electrode assembly comprising same, and a secondary battery comprising the electrode assembly, the negative electrode comprising: a current collector; and a negative electrode active material layer on one or more sides of the current collector, wherein the negative electrode active material layer comprises an amphiphilic polymer and a negative electrode active material having graphite on which an amorphous carbon coating layer is formed.

公开(公告)号：US10763493B2

公开(公告)日：2020-09-01

申请号：US15761620

申请日：2017-03-08

申请人： LG Chem, Ltd.

发明人： Rae Hwan Jo ,  Eun Kyung Kim ,  Yong Ju Lee ,  Su Jin Park ,  Hyun Chul Kim ,  Jung Hyun Choi

IPC分类号： H01M4/134 ,  H01M4/36 ,  H01M10/052 ,  H01M4/62 ,  H01M4/38 ,  C01B33/021 ,  H01M4/1395

摘要： The present invention relates to a silicon-based active material-polymer composite which is secondary particles in which silicon-based particles as primary particles and conductive polymer particles having a modulus of elasticity of 10 Pa to 100 Pa at a temperature of 20° C. to 40° C. are uniformly mixed. The uniform mixture with the elastic conductive polymer particles provides for a buffering action against the stress generated by volumetric changes of the silicon-based particles.

公开(公告)号：US10435571B2

公开(公告)日：2019-10-08

申请号：US15305242

申请日：2015-05-15

申请人： LG Chem, Ltd.

发明人： Kwon Nam Sohn ,  Kil Sun Lee ,  Won Jong Kwon ,  Su Jin Park ,  Byung Hun Oh ,  Eui Yong Hwang ,  Seung Bo Yang ,  Kwang Hyun Yoo ,  Mi Jin Lee

IPC分类号： C01B32/158 ,  C01B32/159 ,  B82Y40/00 ,  B82Y30/00 ,  C09D7/65 ,  C09K5/14 ,  C09D5/24 ,  C09D11/52 ,  H01B1/24 ,  H01M4/62 ,  C01B32/174 ,  C01B32/176 ,  C09D7/40 ,  C08K3/04

摘要： The present invention relates to a method for preparing carbon nanotubes which are capable of more effectively preparing carbon nanotubes having a uniform and fine size, and a dispersion composition of carbon nanotubes obtained using the same. The method for preparing carbon nanotube comprises the steps of: forming a dispersion comprising carbon nanotube bundles, a dispersant and a solvent; and enabling the dispersion to consecutively pass through a high pressure homogenizer, wherein the dispersant is a mixture of plural kinds of polyaromatic hydrocarbon oxides, and the carbon nanotube bundles are pulverized or disentangled while passing through a microchannel of the high pressure homogenizer under a shear force to form carbon nanotubes.

公开(公告)号：US20180301702A1

公开(公告)日：2018-10-18

申请号：US15520000

申请日：2015-10-12

申请人： LG Chem, Ltd.

发明人： Su Jin Park ,  Byung Hun Oh ,  Eun Kyung Kim ,  Sun Young Shin ,  Hyun Wook Kim

IPC分类号： H01M4/583 ,  H01M10/052 ,  H01M4/133 ,  H01M4/62 ,  H01M4/04 ,  H01M4/66 ,  H01M2/14

CPC分类号： H01M4/583 ,  H01M2/14 ,  H01M4/0404 ,  H01M4/133 ,  H01M4/366 ,  H01M4/587 ,  H01M4/62 ,  H01M4/622 ,  H01M4/625 ,  H01M4/661 ,  H01M10/052 ,  H01M2004/027 ,  H01M2004/028

摘要： The present invention relates to a negative electrode for a secondary battery, an electrode assembly comprising same, and a secondary battery comprising the electrode assembly, the negative electrode comprising: a current collector; and a negative electrode active material layer on one or more sides of the current collector, wherein the negative electrode active material layer comprises an amphiphilic polymer and a negative electrode active material having graphite on which an amorphous carbon coating layer is formed.

公开(公告)号：US20160190590A1

公开(公告)日：2016-06-30

申请号：US14902992

申请日：2014-07-31

申请人： LG CHEM, LTD.

发明人： Kwon Nam Sohn ,  Kil Sun Lee ,  Won Jong Kwon ,  Byung Hun Oh ,  Su Jin Park ,  In Young Kim

IPC分类号： H01M4/62 ,  H01M10/0525 ,  H01M4/66 ,  H01B1/24

摘要： The present invention relates to a conducting material composition which is allowed to provide an electrode having a higher content of uniformly dispersed carbon nanotubes, thereby providing a lithium rechargeable batteryelectrode having more improved electrical characteristics and life characteristics, a slurry composition for forming a lithium rechargeable batteryelectrode using the same, and a lithium rechargeable battery. The conducting material composition includes carbon nanotube; and a dispersing agent including a plurality of polyaromatic hydrocarbon oxides, in which the dispersing agent contains the polyaromatic hydrocarbon oxides having a molecular weight of 300 to 1000 in an amount of 60% by weight or more.

摘要翻译： 导电材料组合物本发明涉及一种允许提供均匀分散的碳纳米管含量较高的电极的导电材料组合物，从而提供具有更好的电特性和寿命特性的锂可再充电电池电极，用于形成可充电锂电池 使用相同的，和锂可充电电池。 导电材料组合物包括碳纳米管; 以及包含多种多芳族烃氧化物的分散剂，其中分散剂含有60重量％以上的分子量为300〜1000的多芳族烃氧化物。

公开(公告)号：US10411254B2

公开(公告)日：2019-09-10

申请号：US15295330

申请日：2016-10-17

申请人： LG CHEM, LTD.

发明人： Jung Hyun Choi ,  Yong Ju Lee ,  Eun Kyung Kim ,  Su Jin Park ,  Hyun Chul Kim

IPC分类号： H01M4/13 ,  H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M4/04 ,  H01M4/62 ,  H01M4/139

摘要： The present disclosure relates to a negative electrode active material and a secondary battery including the same, and in particular, provides a negative electrode active material particle including a core including a carbon-based active material, and a shell surrounding the core and including a polymer, wherein silicon-based active material particles are embedded in the shell, and at least a part of the silicon-based active material particles is exposed to a surface of the shell.

公开(公告)号：US20170036914A1

公开(公告)日：2017-02-09

申请号：US15305242

申请日：2015-05-15

申请人： LG Chem, Ltd.

发明人： Kwon Nam Sohn ,  Kil Sun Lee ,  Won Jong Kwon ,  Su Jin Park ,  Byung Hun Oh ,  Eui Yong Hwang ,  Seung Bo Yang ,  Kwang Hyun Yoo ,  Mi Jin Lee

IPC分类号： C01B31/02 ,  C09D5/24 ,  C09D11/52 ,  H01M4/62 ,  C07C27/10 ,  C10C3/04 ,  H01B1/24 ,  H05K9/00 ,  C09K5/14 ,  C09D7/12

CPC分类号： C09D7/65 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/174 ,  C01B32/176 ,  C01B2202/34 ,  C08K3/041 ,  C09D5/24 ,  C09D7/70 ,  C09D11/52 ,  C09K5/14 ,  H01B1/24 ,  H01M4/625 ,  Y10S977/742 ,  Y10S977/842 ,  Y10S977/932

摘要： The present invention relates to a method for preparing carbon nanotubes which are capable of more effectively preparing carbon nanotubes having a uniform and fine size, and a dispersion composition of carbon nanotubes obtained using the same. The method for preparing carbon nanotube comprises the steps of: forming a dispersion comprising carbon nanotube bundles, a dispersant and a solvent; and enabling the dispersion to consecutively pass through a high pressure homogenizer, wherein the dispersant is a mixture of plural kinds of polyaromatic hydrocarbon oxides, and the carbon nanotube bundles are pulverized or disentangled while passing through a microchannel of the high pressure homogenizer under a shear force to form carbon nanotubes.

摘要翻译： 本发明涉及能够更有效地制备具有均匀和细小尺寸的碳纳米管的碳纳米管制备方法和使用其制备的碳纳米管的分散组合物。 制备碳纳米管的方法包括以下步骤：形成包含碳纳米管束，分散剂和溶剂的分散体; 并使分散体连续通过高压均化器，其中分散剂是多种多芳族烃氧化物的混合物，并且在剪切力通过高压均化器的微通道的同时将碳纳米管束粉碎或解开 以形成碳纳米管。

公开(公告)号：US11362329B2

公开(公告)日：2022-06-14

申请号：US16952767

申请日：2020-11-19

申请人： LG CHEM, LTD.

发明人： Su Jin Park ,  Yong Ju Lee ,  Eun Kyung Kim ,  Hyun Chul Kim

IPC分类号： H01M4/485 ,  H01M4/1395 ,  H01M4/04 ,  H01M4/134 ,  H01M4/36 ,  H01M4/1391 ,  H01M4/131 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/02

摘要： A negative electrode active material particle and a method for preparing the same are provided. The negative electrode active material particle includes SiOx (0

公开(公告)号：US20180351160A1

公开(公告)日：2018-12-06

申请号：US15761620

申请日：2017-03-08

申请人： LG Chem, Ltd.

发明人： Rae Hwan Jo ,  Eun Kyung Kim ,  Yong Ju Lee ,  Su Jin Park ,  Hyun Chul Kim ,  Jung Hyun Choi

IPC分类号： H01M4/134 ,  H01M4/36 ,  C01B33/021 ,  H01M10/052 ,  H01M4/62 ,  H01M4/38

CPC分类号： H01M4/134 ,  C01B33/021 ,  H01M4/1395 ,  H01M4/362 ,  H01M4/364 ,  H01M4/386 ,  H01M4/623 ,  H01M4/624 ,  H01M10/052

摘要： The present invention relates to silicon-based active material-polymer composite which is secondary particles in which silicon-based particles as primary particles and conductive polymer particles having a modulus of elasticity of 10 Pa to 100 Pa at a temperature of 20° C. to 40° C. are uniformly mixed.