公开(公告)号：US11581531B2

公开(公告)日：2023-02-14

申请号：US17052301

申请日：2019-06-07

Applicant: LG CHEM, LTD.

Inventor： Dong Hyun Kim ,  Houng Sik Yoo ,  Hyeon Choi

IPC: H01M4/485 ,  H01M4/131 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

Abstract: A negative electrode slurry and a method of preparing the same. The negative electrode slurry includes lithium titanium oxide (LTO), a carboxylic acid-containing polymer dispersant, a binder, and an aqueous solvent. The carboxylic acid-containing polymer dispersant has a weight average molecular weight (Mw) of 2,500 g/mol to 500,000 g/mol and is present in an amount of 1.5 parts by weight to 20 parts by weight with respect to 100 parts by weight of the lithium titanium oxide.

公开(公告)号：US20200028174A1

公开(公告)日：2020-01-23

申请号：US16338154

申请日：2018-03-22

Applicant: LG Chem, Ltd.

Inventor： Byoung Hoon Ahn ,  Houng Sik Yoo ,  Chang Wan Koo ,  Hyun Chul Ha ,  Sang Hoon Choy ,  Jong Won Lee ,  Dong Hyun Kim ,  Gye Min Kwon

IPC: H01M4/62 ,  H01M4/136 ,  H01M4/58 ,  H01M10/0525

Abstract: The present invention relates to a positive electrode active material pre-dispersion composition which includes a lithium iron phosphate-based positive electrode active material, a dispersant, and a solvent, wherein the dispersant includes a hydrogenated nitrile butadiene rubber (HNBR), a slurry composition for a secondary battery positive electrode which is prepared by using the positive electrode active material pre-dispersion composition, a positive electrode for a secondary battery, and a lithium secondary battery including the positive electrode.

公开(公告)号：US09090763B2

公开(公告)日：2015-07-28

申请号：US13688192

申请日：2012-11-28

Applicant: LG CHEM, LTD.

Inventor： Jin Young Ryu ,  Hak Shin Kim ,  Houng Sik Yoo ,  Eun Joo Choi ,  Young Jun Hong

IPC: B32B5/16 ,  B32B7/00 ,  B32B27/36 ,  B32B27/38 ,  C08L27/12 ,  C08L33/12 ,  B32B27/08 ,  C08L33/04 ,  C08L101/00 ,  C08J3/12 ,  C08L101/04 ,  G01N21/3563

CPC classification number: C08L27/12 ,  B32B27/08 ,  B32B27/306 ,  B32B27/32 ,  B32B27/36 ,  B32B27/365 ,  B32B2250/24 ,  B32B2270/00 ,  B32B2274/00 ,  B32B2307/306 ,  B32B2307/584 ,  C08J3/126 ,  C08J5/00 ,  C08J2400/00 ,  C08J2400/102 ,  C08L33/04 ,  C08L33/12 ,  C08L101/00 ,  C08L101/04 ,  G01N21/3563 ,  Y10T428/2991 ,  Y10T428/2998 ,  Y10T428/3154 ,  C08L33/14

Abstract: Provided are a resin blend for forming a layer-separated structure, a pellet, a method of preparing a resin article using the same, and a resin article. The resin blend may include a first resin, and a second resin including a resin to which a fluorine or fluorine-substituted organic functional group is introduced and having a difference in surface energy from the first resin at 25° C. of 0.1 to 35 mN/m. The resin blend can improve mechanical and surface characteristics of a resin article. Also, the resin blend can realize excellent contamination resistance of a resin article. Further, since coating or plating is not required for manufacturing a resin article, a manufacturing time and/or cost can be reduced, and productivity can be increased.

Abstract translation: 提供了用于形成层分离结构的树脂共混物，颗粒，使用其的树脂制品的制备方法和树脂制品。 树脂共混物可以包括第一树脂和包含引入氟或氟取代的有机官能团的树脂的第二树脂，并且在25℃下具有与第一树脂的表面能不同的表面能为0.1至35mN / m。 树脂共混物可以改善树脂制品的机械和表面特性。 此外，树脂共混物可以实现树脂制品的优异的耐污染性。 此外，由于制造树脂制品不需要涂覆或电镀，因此可以降低制造时间和/或成本，并且可以提高生产率。

公开(公告)号：US11539099B2

公开(公告)日：2022-12-27

申请号：US16765253

申请日：2018-12-05

Applicant: LG CHEM, LTD.

Inventor： Gye Min Kwon ,  Houng Sik Yoo ,  Hyeon Choi ,  Da Kyung Han ,  Je An Lee

IPC: H01M10/0525 ,  H01M50/409 ,  H01M10/0562 ,  H01M50/403 ,  H01M4/02

Abstract: A slurry composition for coating a secondary battery separator, a separator prepared using the same, and a secondary battery including the separator, wherein the slurry composition includes a phenolic compound including two or more aromatic rings, inorganic particles, a binder, and a solvent.

公开(公告)号：US10035902B2

公开(公告)日：2018-07-31

申请号：US14755702

申请日：2015-06-30

Applicant: LG CHEM, LTD.

Inventor： Jin Young Ryu ,  Houng Sik Yoo ,  Hak Shin Kim ,  Young Jun Hong ,  Chong Kyu Shin ,  Eun Joo Choi

IPC: C08L33/12 ,  B29C47/00 ,  C08L25/12 ,  B29C47/06 ,  C08L9/06 ,  C08L9/00 ,  C08L29/04 ,  B32B3/02 ,  B32B27/08 ,  C08J3/00 ,  C08J5/00 ,  C08L33/04 ,  C08L101/00 ,  C08L33/16 ,  C08L37/00 ,  C08L55/02 ,  C08L101/12 ,  G01N21/3563 ,  B29K29/00 ,  B29K33/00 ,  B29K105/00

Abstract: Provided are a resin blend for melt processing, a pellet and a method of preparing a resin article using the same. The resin blend may include a first resin, and a second resin having a difference in melt viscosity from the first resin of 0.1 to 3000 pa*s at a shear rate of 100 to 1000 s−1 and a processing temperature of the resin blend. The resin blend can improve mechanical and surface characteristics of a resin article. Further, since coating or plating is not required for manufacturing a resin article, a manufacturing time and/or cost can be reduced, and productivity can be increased.

公开(公告)号：US09481149B2

公开(公告)日：2016-11-01

申请号：US13687947

申请日：2012-11-28

Applicant: LG CHEM, LTD.

Inventor： Houng Sik Yoo ,  Hak Shin Kim ,  Jin Young Ryu ,  Chong Kyu Shin ,  Young Jun Hong ,  Jeong Min Kim ,  Eun Joo Choi

IPC: B32B27/08 ,  B32B7/02 ,  B32B25/14 ,  B32B27/30 ,  B32B27/32 ,  B32B27/36 ,  B32B27/38 ,  G01N21/35 ,  G01N21/84 ,  G01N21/3577

CPC classification number: B32B27/08 ,  B32B7/02 ,  B32B25/14 ,  B32B27/30 ,  B32B27/302 ,  B32B27/304 ,  B32B27/306 ,  B32B27/32 ,  B32B27/36 ,  B32B27/365 ,  B32B27/38 ,  B32B2274/00 ,  B32B2437/04 ,  B32B2605/08 ,  G01N21/35 ,  G01N21/3563 ,  G01N21/3577 ,  G01N2021/8438 ,  Y10T428/24942 ,  Y10T428/2495 ,  Y10T428/31507 ,  Y10T428/31511 ,  Y10T428/31536

Abstract: Provided is a resin article produced by melt processing and having layers formed by a layer-separation. The resin article may include a first resin layer, a second resin layer formed on the first resin layer and an interface layer including a first resin and a second resin and formed between the first resin layer and the second resin layer. The resin article may have improved mechanical and surface characteristics. Further, since coating or plating is not required for manufacturing a resin article, a manufacturing time and/or cost can be reduced, and productivity can be increased.

Abstract translation: 提供通过熔融加工制造并具有通过层分离形成的层的树脂制品。 树脂制品可以包括第一树脂层，形成在第一树脂层上的第二树脂层和包含第一树脂和第二树脂的界面层，并形成在第一树脂层和第二树脂层之间。 树脂制品可具有改善的机械和表面特性。 此外，由于制造树脂制品不需要涂覆或电镀，因此可以降低制造时间和/或成本，并且可以提高生产率。

公开(公告)号：US09296178B2

公开(公告)日：2016-03-29

申请号：US14085102

申请日：2013-11-20

Applicant: LG CHEM, LTD.

Inventor： Houng Sik Yoo ,  Hak Shin Kim ,  Jin Young Ryu ,  Chong Kyu Shin ,  Young Jun Hong ,  Jeong Min Kim ,  Eun Joo Choi

IPC: B32B7/02 ,  B32B27/32 ,  B32B27/30 ,  B32B27/08 ,  B32B25/14 ,  B32B27/36 ,  B32B27/38 ,  G01N21/35 ,  G01N21/3577 ,  G01N21/84

CPC classification number: B32B7/02 ,  B32B25/14 ,  B32B27/08 ,  B32B27/30 ,  B32B27/302 ,  B32B27/304 ,  B32B27/306 ,  B32B27/32 ,  B32B27/36 ,  B32B27/365 ,  B32B27/38 ,  B32B2270/00 ,  B32B2274/00 ,  B32B2307/306 ,  B32B2307/536 ,  B32B2307/542 ,  B32B2307/584 ,  B32B2437/04 ,  B32B2605/08 ,  G01N21/35 ,  G01N21/3577 ,  G01N2021/8438 ,  Y10T428/24942 ,  Y10T428/2495 ,  Y10T428/31917

Abstract: Provided is a resin article having a layer-separated structure. The resin article may include a first resin layer and a second resin layer formed on the first resin layer. Also, the component of the first resin layer is detected on a surface of the second resin layer by infrared spectrometer. The resin article may have improved mechanical and surface characteristics. Further, since coating or plating is not required for manufacturing a resin article, a manufacturing time and/or cost can be reduced, and productivity can be increased.

Abstract translation: 提供具有层分离结构的树脂制品。 树脂制品可以包括形成在第一树脂层上的第一树脂层和第二树脂层。 此外，通过红外光谱仪在第二树脂层的表面上检测第一树脂层的成分。 树脂制品可具有改善的机械和表面特性。 此外，由于制造树脂制品不需要涂覆或电镀，因此可以降低制造时间和/或成本，并且可以提高生产率。

公开(公告)号：US11309541B2

公开(公告)日：2022-04-19

申请号：US16641114

申请日：2018-08-31

Applicant: LG CHEM, LTD.

Inventor： Dong Hyun Kim ,  Houng Sik Yoo ,  Byoung Hoon Ahn ,  Sang Hoon Choy ,  Hyeon Choi

IPC: H01M4/485 ,  H01M4/04 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

Abstract: A negative electrode slurry including a lithium titanium oxide, a dispersant including a polar OH group and a non-polar alkyl group, a binder, and a solvent, and a method of preparing the same.

公开(公告)号：US20200295347A1

公开(公告)日：2020-09-17

申请号：US16495170

申请日：2018-03-22

Applicant: LG Chem, Ltd.

Inventor： Byoung Hoon Ahn ,  Houng Sik Yoo ,  Gye Min Kwon ,  Sang Hoon Choy

IPC: H01M4/04 ,  H01M4/36 ,  H01M4/525 ,  H01M4/58 ,  H01M4/62 ,  H01M4/66 ,  H01M4/75

Abstract: A method of preparing a slurry composition for a secondary battery positive electrode includes preparing a positive electrode active material pre-dispersion by mixing a lithium iron phosphate-based positive electrode active material, a dispersant, and a solvent, and preparing a slurry for a positive electrode by further mixing a conductive agent, a binder, and an additional solvent with the positive electrode active material pre-dispersion is provided. A positive electrode for a secondary battery which is prepared by using the same method, and a lithium secondary battery including the positive electrode are also provided.

公开(公告)号：US10693124B2

公开(公告)日：2020-06-23

申请号：US15751067

申请日：2017-03-24

Applicant: LG Chem, Ltd.

Inventor： Byoung Hoon Ahn ,  Sang Hoon Choy ,  Houng Sik Yoo ,  Ki Won Sung

IPC: H01M4/62 ,  H01M4/1391 ,  H01M4/139 ,  H01M4/13 ,  H01M10/0525 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/131 ,  H01M4/02 ,  H01M10/052

Abstract: The present invention provides a composition for forming a positive electrode of a secondary battery which includes a positive electrode active material, a conductive material, and a dispersing agent, in which the conductive material includes a carbon-based material having a specific surface area of 130 m2/g or more and an oil absorption number of 220 ml/100 g or more at 0.1 wt % to 2 wt % with respect to the total weight of the composition for forming a positive electrode, and the dispersing agent is introduced into the conductive material to form a conductive material-dispersing agent composite, and the conductive material-dispersing agent composite has a particle size distribution D50 of 0.8 μm to 1.2 μm, a positive electrode for a secondary battery and a secondary battery, which are manufactured using the same.