公开(公告)号：US11973227B2

公开(公告)日：2024-04-30

申请号：US16978884

申请日：2019-11-01

申请人： LG Chem, Ltd.

发明人： Seon Hee Han ,  Min Ah Kang ,  Dong Jo Ryu ,  Jung Sup Han ,  Jeong Man Son ,  Cheolhoon Choi

IPC分类号： H01M4/62 ,  C08L9/08 ,  H01M10/0525 ,  H01M50/449 ,  H01M50/451

CPC分类号： H01M4/622 ,  C08L9/08 ,  H01M10/0525 ,  H01M50/449 ,  H01M50/451

摘要： Provided are a binder composition for a secondary battery electrode, and an electrode mixture including the same, and more particularly, a binder composition for a secondary battery electrode capable of providing excellent binding strength for an active material and an electrode while having excellent latex stability, thereby improving performance of a secondary battery, and an electrode mixture including the same.

公开(公告)号：US20230079409A1

公开(公告)日：2023-03-16

申请号：US17800725

申请日：2021-11-26

申请人： LG Chem, Ltd.

发明人： Min Ah Kang ,  Jeong Man Son ,  Sungjin Lee ,  Dong Jo Ryu ,  Jungeun Woo

IPC分类号： H01M4/62 ,  H01M4/04

摘要： The present disclosure relates to a binder for an anode of a secondary battery, an anode of a secondary battery and a secondary battery. Specifically, there is provided a binder for an anode, which comprises a (co)polymer having a storage modulus of 100 MPa or more measured at 100° C., has elasticity enough to withstand a change in the volume of an anode active material while improving processability, and ultimately secure the lifespan of a secondary battery.

公开(公告)号：US11427509B2

公开(公告)日：2022-08-30

申请号：US16095804

申请日：2017-12-08

申请人： LG Chem, Ltd.

发明人： Chang Bum Ko ,  Dong Jo Ryu ,  Im Gyu Kim ,  Hyo Min Kim

IPC分类号： C04B24/26 ,  C04B26/10 ,  C04B24/32 ,  C08L33/08 ,  C08F220/26 ,  C08F216/14 ,  C08F220/28 ,  C04B103/30 ,  C04B103/32 ,  C08F222/10

摘要： The present disclosure relates to a cement additive composition including a polycarboxylic acid-based copolymer. When the cement additive composition of the present disclosure is used for cement formulation, it may improve fluidity of the composition even in a high water reducing ratio range of the particle and effectively prevent slump loss of the cement formulation, while improving initial dispersibility due to excellent water reducing performance.

公开(公告)号：US11223046B2

公开(公告)日：2022-01-11

申请号：US15516820

申请日：2016-06-16

申请人： LG CHEM, LTD.

发明人： Min Ah Kang ,  Dong Jo Ryu ,  Cheol Hoon Choi ,  Seon Hee Han ,  Hye Soo Han

IPC分类号： H01M4/62 ,  H01M4/04 ,  H01M4/13 ,  C08F212/08 ,  C08F220/12 ,  C08L33/08 ,  H01M4/131 ,  H01M4/133 ,  H01M10/0525

摘要： Disclosed is a binder composition for secondary batteries including composite latex comprising conjugated diene latex particles (A) and copolymer latex particles (B), each present in an independent phase, wherein the composite latex has a pH of 7 or less.

公开(公告)号：US20210384512A1

公开(公告)日：2021-12-09

申请号：US17311111

申请日：2019-12-17

申请人： LG Chem, Ltd.

发明人： Cheolhoon Choi ,  Dong Jo Ryu ,  Seon Hee Han ,  Jung Sup Han ,  Jeong Man Son ,  Min Ah Kang

IPC分类号： H01M4/62 ,  H01M4/36 ,  H01M4/48 ,  H01M4/587 ,  H01M4/04 ,  H01M10/0525

摘要： A slurry composition for an electrode of a secondary battery, has a hydrophobically modified alkali-swellable emulsion (HASE), a poly(meth)acrylic acid and a conductive agent. The slurry composition is capable of realizing excellent electrode adhesion in high energy electrode. The electrode of a secondary battery prepared using the same, and a secondary battery are also provided.

公开(公告)号：US20210226219A1

公开(公告)日：2021-07-22

申请号：US17055845

申请日：2020-01-16

申请人： LG Chem, Ltd.

发明人： Jeong Man Son ,  Dong Jo Ryu ,  Seon Hee Han ,  Jung Sup Han ,  Min Ah Kang ,  Cheolhoon Choi

IPC分类号： H01M4/62 ,  H01M4/04 ,  H01M4/36

摘要： Provided are an electrode for a secondary battery, a manufacturing method thereof, and a secondary battery including the same. Specifically, according to one embodiment of the present invention, there is provided an electrode for a secondary battery, the electrode including two kinds of binders of which particle diameters are different from each other and distributions in an electrode mixture layer are different from each other.

公开(公告)号：US10208171B2

公开(公告)日：2019-02-19

申请号：US15984977

申请日：2018-05-21

申请人： LG Chem, Ltd.

发明人： Yong Hun Lee ,  Chang Sun Han ,  Hye Mi Nam ,  Dong Jo Ryu ,  Hyemin Lee

IPC分类号： C08F2/10 ,  C08J3/075 ,  C08J3/24 ,  C08F265/06 ,  A61L15/24 ,  A61L15/60 ,  C08J3/12 ,  B01J20/26 ,  C08J7/12

摘要： Provided are a preparation method of a superabsorbent polymer, and a superabsorbent polymer prepared thereby. The preparation method of the superabsorbent polymer according to the present disclosure enables preparation of the superabsorbent polymer which is excellent in absorption properties such as centrifuge retention capacity and absorbency under pressure, and also has improved permeability. In addition, the preparation method exhibits excellent operability during the preparation (in particular, surface crosslinking of the polymer) and excellent productivity due to low production of coarse particles and fine particles.

公开(公告)号：US12068483B2

公开(公告)日：2024-08-20

申请号：US17267202

申请日：2019-10-21

申请人： LG Chem, Ltd.

发明人： Min Ah Kang ,  Dong Jo Ryu ,  Seon Hee Han ,  Jung Sup Han ,  Jeong Man Son ,  Cheolhoon Choi

IPC分类号： H01M4/62 ,  C08F2/26 ,  C08F236/06 ,  C08F236/10 ,  C08F236/12 ,  H01M4/36 ,  H01M10/0525 ,  H01M10/44

CPC分类号： H01M4/622 ,  C08F2/26 ,  C08F236/06 ,  C08F236/10 ,  C08F236/12 ,  H01M4/366 ,  H01M10/0525 ,  H01M10/44

摘要： An electrode binder composition for a rechargeable battery includes emulsion polymer particles comprising a1) first repeat units derived from conjugated diene monomers; one or more second repeat units selected from the group consisting of b1) repeat units derived from aromatic vinyl monomers, b2) repeat units derived from alkyl (meth)acrylate monomers, b3) repeat units derived from (meth)acryl amide monomers, b4) repeat units derived from nitrile based monomers, and b5) repeat units derived from unsaturated carbonic acid monomers; and c1) third repeat units derived from monomers represented by the following Chemical Formula 1:






wherein R1 is hydrogen, or a C1-10 alkyl group, X is hydrogen or a methyl group, Y is oxygen atom, or —NR2-, R2 is hydrogen, or a C1-10 alkyl group, and Z is a C1-10 alkyl group.

公开(公告)号：US20220020992A1

公开(公告)日：2022-01-20

申请号：US17299613

申请日：2020-10-14

申请人： LG Chem, Ltd.

发明人： Sungjin Lee ,  Jeong Man Son ,  Dong Jo Ryu ,  Seon Hee Han ,  Jung Sup Han ,  Min Ah Kang ,  Jungeun Woo ,  Cheolhoon Choi

IPC分类号： H01M4/62 ,  C08F236/10 ,  C08K13/02 ,  C09D147/00

摘要： There is provided an anode binder materials that can be converted into an anode binder having heat resistance, chemical resistance, excellent binding force and durability, and the like, as prerequisites for improving the performances of lithium rechargeable batteries, wherein the anode binder material comprises a vulcanization accelerator comprising a metal-organic framework (MOF); a styrene-butadiene-based copolymer; and sulfur molecule (S8).

公开(公告)号：US20210351410A1

公开(公告)日：2021-11-11

申请号：US17262073

申请日：2020-06-25

申请人： LG Chem, Ltd.

发明人： Jeong Man Son ,  Jung Sup Han ,  Dong Jo Ryu ,  Seon Hee Han ,  Min Ah Kang ,  Jungeun Woo ,  Cheolhoon Choi ,  Sungjin Lee

IPC分类号： H01M4/62 ,  H01M10/0525 ,  H01M4/36 ,  H01M4/583

摘要： An anode for a lithium rechargeable battery and a lithium rechargeable battery including the same are provided. Specifically, a plurality of anode active material layers are sequentially stacked on an anode current collector, and in the innermost layer directly contacting the anode current collector, polyolefin-based polymer is applied as a binder, and in the other layers, heterogeneous polymers are applied as binders.