公开(公告)号：US20190135645A1

公开(公告)日：2019-05-09

申请号：US16074411

申请日：2017-09-29

Applicant: LG CHEM, LTD.

Inventor： Jong Hun KIM ,  Je Kyun LEE

IPC: C01B33/40

Abstract: The present invention relates to a low-temperature/atmospheric-pressure method for producing synthetic hectorite and synthetic hectorite produced using the same, and more particularly, provides a method for producing synthetic hectorite at a low temperature and atmospheric pressure and synthetic hectorite produced using the same such that: a crystallization reaction may be carried out under a low-temperature/atmospheric-pressure condition by introducing a step of forming a precipitate and using a weak basic catalyst when the Li—Mg precipitates are formed; a reaction time may be reduced; synthetic hectorite with excellent major application properties may be prepared; and the properties may be easily controlled by controlling a composition ratio of a reactant.

公开(公告)号：US20180193825A1

公开(公告)日：2018-07-12

申请号：US15533936

申请日：2016-10-19

Applicant: LG CHEM, LTD.

Inventor： Jong Hun KIM ,  Hyun Woo JEON ,  Je Kyun LEE

IPC: B01J31/02 ,  C01B13/14 ,  C01B33/158 ,  B01J21/02

CPC classification number: B01J31/0212 ,  B01J21/02 ,  B01J31/02 ,  C01B13/14 ,  C01B33/158 ,  C01B33/1585 ,  C01P2004/03 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16

Abstract: The present invention relates to a method of preparing an ultra-light metal oxide-silica composite aerogel having high specific surface area and high pore volume and a metal oxide-silica composite aerogel prepared thereby. The preparation method according to the present invention may not only have good economic efficiency because production costs are relatively reduced in comparison to the related art, but may also effectively prevent the collapse of a pore structure by suppressing a shrinkage phenomenon during drying, and thus, a metal oxide-silica composite aerogel having ultra-light properties as well as high porosity characteristics, such as high specific surface area and high pore volume, may be prepared.

公开(公告)号：US20210206923A1

公开(公告)日：2021-07-08

申请号：US17057292

申请日：2019-11-27

Applicant: LG CHEM, LTD.

Inventor： Kyu Reon LEE ,  Kyoung Shil OH ,  Jong Hun KIM ,  Se Won BAEK

IPC: C08G77/02 ,  C08J9/28 ,  C08J3/075 ,  C01B33/158 ,  C01B33/143

Abstract: A method for synthesizing a pre-hydrolyzed polysilicate, wherein a polysilicate is applied as a reactant when synthesizing the pre-hydrolyzed polysilicate, and the total amount of water added in the reaction system is specified. The method is capable of omitting a condensation reaction by applying a polysilicate as a reactant, thereby significantly shortening synthesis time and reducing production costs when compared with a typical synthesis method in which alkoxysilane-based monomer compound is used as a reactant. In addition, the gelation reaction time and the weight average molecular weight can be easily controlled, and a pre-hydrolyzed polysilicate excellent in storage stability and processability can be synthesized.

公开(公告)号：US20190337811A1

公开(公告)日：2019-11-07

申请号：US16074385

申请日：2017-09-29

Applicant: LG CHEM, LTD.

Inventor： Jong Hun KIM ,  Je Kyun LEE

IPC: C01B33/40

Abstract: The present invention relates to a method for producing synthetic hectorite at a low temperature and atmospheric pressure and synthetic hectorite produced by the same, and more particularly, to a method for producing synthetic hectorite and synthetic hectorite produced by the same in which: a step of forming Li—Mg precipitates is introduced and thereby ensures an improved crystallization reaction condition and synthetic hectorite having excellent properties; and composition ratios of reactants are controlled, and thus, property control is easy.

公开(公告)号：US20180208474A1

公开(公告)日：2018-07-26

申请号：US15743643

申请日：2016-12-08

Applicant: LG CHEM, LTD.

Inventor： Jong Hun KIM ,  Je Kyun LEE

IPC: C01B33/158

CPC classification number: C01B33/158 ,  B01J31/02 ,  C01B33/1585 ,  C01F5/02 ,  C01F11/02 ,  C01P2006/11 ,  C01P2006/12

Abstract: The present invention relates to a method of preparing a metal oxide-silica composite aerogel containing a high ratio of a metal oxide and a metal oxide-silica composite aerogel prepared thereby. The method of preparing a metal oxide-silica composite aerogel according to the present invention may adjust a metal oxide ratio to a high level while easily forming a uniform network structure by performing a primary reaction under an acidic condition and a secondary reaction under a basic condition, and thus, since the prepared metal oxide-silica composite aerogel may contain a high ratio of the metal oxide, mechanical properties may not only be excellent, but high specific surface area and low tap density characteristics may also be exhibited.

公开(公告)号：US20180194634A1

公开(公告)日：2018-07-12

申请号：US15743631

申请日：2016-12-13

Applicant: LG CHEM, LTD.

Inventor： Tae Gyeong KANG, ,  Jong Hun KIM ,  Je Kyun LEE

IPC: C01B33/158 ,  C01F11/02 ,  C01F5/02 ,  C01B33/159 ,  B01J13/00

Abstract: The present invention relates to a method of preparing a metal oxide-silica composite aerogel having a uniform particle size and excellent pore characteristics and a metal oxide-silica composite aerogel prepared thereby. The preparation method according to the present invention may not only have good economic efficiency because production costs are relatively reduced in comparison to the related art, but may also effectively prevent the collapse of a pore structure by suppressing a shrinkage phenomenon during drying. Thus, a metal oxide-silica composite aerogel prepared by the above preparation method may have higher specific surface area and better pore characteristics than a conventional metal oxide-silica composite aerogel prepared by oven drying while having low tap density.

公开(公告)号：US20230024770A1

公开(公告)日：2023-01-26

申请号：US17947414

申请日：2022-09-19

Applicant: LG CHEM, LTD.

Inventor： Jong Hun KIM ,  Je Kyun LEE

IPC: B01J13/00 ,  C01B33/158

Abstract: Provided are a method of preparing a metal oxide-silica composite aerogel, and a metal oxide-silica composite aerogel having an excellent weight reduction property prepared by the method. The method includes a step of adding an acid catalyst to a first water glass solution to prepare an acidic water glass solution (step 1); a step of adding a metal ion solution to the acidic water glass solution to prepare a precursor solution (step 2); and a step of adding a second water glass solution to the precursor solution and performing a gelation reaction (step 3) to yield a metal oxide-silica composite wet gel, wherein, in steps 2 and 3, bubbling of an inert gas is performed during the adding of the metal ion solution or the second water glass solution, respectively.

公开(公告)号：US20200010328A1

公开(公告)日：2020-01-09

申请号：US16492017

申请日：2018-09-07

Applicant: LG CHEM, LTD.

Inventor： Jong Hun KIM ,  Je Kyun LEE

IPC: C01B33/24 ,  B01J13/00

Abstract: Provided is a method of preparing a metal oxide-silica composite aerogel and a metal oxide-silica composite aerogel having an excellent weight reduction property prepared by the method. The method comprises adding an acid catalyst to a first water glass solution to prepare an acidic water glass solution (step 1); adding a metal ion solution to the acidic water glass solution to prepare a precursor solution (step 2); and adding a second water glass solution to the precursor solution and performing a gelation reaction (step 3).

公开(公告)号：US20180254533A1

公开(公告)日：2018-09-06

申请号：US15755379

申请日：2017-02-06

Applicant: LG Chem, Ltd.

Inventor： Gi Min NAM ,  Jong Hun KIM

IPC: H01M10/617 ,  H01M10/02 ,  H01M10/613 ,  H01M10/615 ,  H01M10/625 ,  H01M10/647 ,  H01M10/659 ,  H01M2/26 ,  H01M2/16

CPC classification number: H01M10/617 ,  H01M2/0237 ,  H01M2/0262 ,  H01M2/0275 ,  H01M2/0287 ,  H01M2/1673 ,  H01M2/26 ,  H01M10/02 ,  H01M10/613 ,  H01M10/615 ,  H01M10/625 ,  H01M10/647 ,  H01M10/659

Abstract: The present invention provides a battery cell of a plate shape, including: an electrode assembly in which a separator is interposed between a positive electrode and a negative electrode, wherein the electrode assembly may be mounted on a receiving part; and sealing parts formed by heat fusion at an external side of the receiving part, wherein lateral sealing parts adjacent to one of the sealing parts at which an electrode terminal is positioned may closely contact an outer surface of the receiving part while being bent toward the receiving part of a battery case, and a phase change material (PCM) that is phase-changed in response to a thermal change may be added to surplus surfaces of the lateral sealing parts or to surplus spaces between the receiving parts and the bent lateral sealing parts.

公开(公告)号：US20180127278A1

公开(公告)日：2018-05-10

申请号：US15577747

申请日：2016-06-01

Applicant: LG CHEM, LTD.

Inventor： Jong Hun KIM ,  Je Kyun LEE

IPC: C01B33/158 ,  C01B33/021 ,  B01J20/06 ,  B01J20/10

Abstract: Provided are a method of preparing a metal oxide-silica composite aerogel, which includes preparing metal oxide-silica composite precipitates by adding a metal salt solution to a silicate solution and performing a reaction, and washing the metal oxide-silica composite precipitates with a washing solvent having a surface tension at 20±5° C. of 30 mN/m or less and drying the washed metal oxide-silica composite precipitates, and a metal oxide-silica composite aerogel having increased specific surface area and pore properties as well as tap density, which is significantly reduced by a maximum of 78.6% in comparison to a composite aerogel prepared by using water as a typical washing solvent, prepared by the method.