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公开(公告)号：US10923697B2
公开(公告)日：2021-02-16
申请号：US15805771
申请日：2017-11-07
Applicant: LG Chem, Ltd.
Inventor： Soo Young Kim , Jong Hun Kim , Jeong Min Ha , Byoung Jin Shin , Jeong Hwan Kang
Abstract: An electrode assembly and a method for manufacturing the electrode assembly comprises a plurality of unit cells comprising a positive electrode, a negative electrode, and a separator, respectively, and a separation film folded to be disposed between the plurality of unit cells. The separation film is folded two times or more to come into contact with and surround a first unit cell, which is disposed at an initial position of the separation film, of the plurality of unit cells.
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公开(公告)号：US10526207B2
公开(公告)日：2020-01-07
申请号：US15577742
申请日：2016-06-01
Applicant: LG CHEM, LTD.
Inventor： Jong Hun Kim , Jae Hoon Choi , Je Kyun Lee
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 drying the metal oxide-silica composite precipitates by irradiation with infrared rays in a wavelength range of 2 μm to 8 μm, and a metal oxide-silica composite aerogel having excellent physical properties, such as low tap density and high specific surface area, as well as excellent pore properties prepared by the method.
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公开(公告)号：US12037253B2
公开(公告)日：2024-07-16
申请号：US17584625
申请日：2022-01-26
Applicant: LG CHEM, LTD.
Inventor： Jong Hun Kim , Je Kyun Lee
CPC classification number: C01B33/24 , B01J13/0091 , C01P2006/10 , C01P2006/14 , C01P2006/17
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).
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公开(公告)号：US11452979B2
公开(公告)日：2022-09-27
申请号：US16315572
申请日：2017-10-10
Applicant: LG CHEM, LTD.
Inventor： Tae Gyeong Kang , Je Kyun Lee , Jong Hun Kim
IPC: B01J13/00 , C01B33/158 , C01B33/159
Abstract: A method for producing a plate type metal-silica composite aerogel and a plate type metal-silica composite aerogel produced thereby in which the metal salt concentration and the basic catalyst concentration are adjusted to form a plate type intermediate first, and then an appropriate amount of a water glass solution is added, thereby enabling the plate type metal-silica composite aerogel to be produced in a short time under conditions of low temperature and atmospheric pressure, so that the process is simpler than the conventional production method, and the cost is reduced, which is excellent in economy. Also provided is a plate type metal-silica composite aerogel, which is produced by the claimed method and has excellent dispersibility that requires no additional surface modifier.
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公开(公告)号：US10556800B2
公开(公告)日：2020-02-11
申请号：US15743643
申请日：2016-12-08
Applicant: LG CHEM, LTD.
Inventor： Jong Hun Kim , Je Kyun Lee
IPC: C01B33/158 , C01F5/02 , B01J31/02 , C01F11/02
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.
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Patent Agency Ranking
公开(公告)号：US20250073674A1
公开(公告)日：2025-03-06
申请号：US18270569
申请日：2023-01-12
Applicant: LG Chem, Ltd.
Inventor： Jong Hun Kim , Yong Jin Kim
Abstract: Provided is a method for preparing a super absorbent polymer composite including: preparing super absorbent polymer particles including a crosslinked polymer of an aqueous ethylenically unsaturated monomer having an at least partially neutralized acid group and an internal crosslinking agent, water treating the super absorbent polymer particles to adsorb moisture on the super absorbent polymer particles, and mixing the water-treated super absorbent polymer particles and an anti-caking agent to adhere the anti-caking agent on the water-treated super absorbent polymer particles.
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公开(公告)号：US11945915B2
公开(公告)日：2024-04-02
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 , C01B33/143 , C01B33/158 , C08J3/075 , C08J9/28
CPC classification number: C08G77/02 , C01B33/143 , C01B33/1585 , C08J3/075 , C08J9/28
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.
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公开(公告)号：US11332378B2
公开(公告)日：2022-05-17
申请号：US17056841
申请日：2019-11-27
Applicant: LG CHEM, LTD.
Inventor： Jong Hun Kim , Se Won Baek
Abstract: A method for producing a silica aerogel, the method including preparing a reactant by adding a basic catalyst to a first silica precursor solution, performing primary gelation in which the reactant is stirred to form a gel precursor, introducing a second silica precursor solution to a fiber, and performing a secondary gelation in which the gel precursor is introduced to the fiber to which the second silica precursor solution was introduced to form a silica aerogel.
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公开(公告)号：US11014825B2
公开(公告)日：2021-05-25
申请号：US16335215
申请日：2017-10-25
Inventor： Jong Hun Kim , Je Kyun Lee , Dong Sik Bae , Yeon Bin Choi
IPC: C01G23/00
Abstract: The present invention relates to a method for producing potassium titanate, and the present invention provides a method for producing potassium titanate which uses anatase-phased titanium dioxide to simplify the process by a hydrothermal method, and thus may improve economical efficiency and productivity, and in which the reaction temperature, the reaction time and the molar ratio of a precursor may be controlled to produce a high-purity potassium titanate whisker having a nano size of an uniform shape.
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公开(公告)号：US10792650B2
公开(公告)日：2020-10-06
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: B01J21/00 , B01J31/02 , C01B33/158 , C01B13/14 , B01J21/02
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.
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