公开(公告)号：US12100806B2

公开(公告)日：2024-09-24

申请号：US17056948

申请日：2019-09-11

Applicant: LG Chem, Ltd.

Inventor： Hyun Seung Kim ,  Chul Haeng Lee ,  Yu Ha An ,  Jeong Woo Oh

IPC: H01M10/0566 ,  C07C50/04 ,  H01M4/02 ,  H01M4/505 ,  H01M10/0525

CPC classification number: H01M10/0566 ,  C07C50/04 ,  H01M4/505 ,  H01M10/0525 ,  H01M2004/028 ,  H01M2300/0025

Abstract: A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution for a lithium secondary battery, includes a lithium salt, an organic solvent, and an additive, wherein the additive includes a compound represented by Formula 1.

公开(公告)号：US11929520B2

公开(公告)日：2024-03-12

申请号：US16976859

申请日：2019-04-17

Applicant: LG CHEM, LTD.

Inventor： Kyoung Ho Ahn ,  Kwan Woo Nam ,  Chul Haeng Lee ,  Young Duk Kim ,  Je An Lee

IPC: H01M50/446 ,  C08K3/22 ,  H01M10/0525 ,  H01M50/443 ,  H01M50/489

CPC classification number: H01M50/446 ,  C08K3/22 ,  H01M50/443 ,  H01M50/489 ,  C08K2003/2227 ,  H01M10/0525

Abstract: Disclosed herein is a porous separator for electrochemical devices, configured to guarantee electrical insulation between a positive electrode and a negative electrode, wherein the porous separator includes no polyolefin substrate, and includes inorganic particles, a binder for coupling between the inorganic particles, and a crosslinking agent.

公开(公告)号：US11923509B2

公开(公告)日：2024-03-05

申请号：US17054354

申请日：2019-07-26

Applicant: LG Chem, Ltd.

Inventor： Won Kyung Shin ,  Kyoung Ho Ahn ,  Chul Haeng Lee ,  Min Jung Kim ,  Jung Hoon Lee

IPC: H01M10/0568 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0569

CPC classification number: H01M10/0568 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0569 ,  H01M2300/0082 ,  H01M2300/0085

Abstract: An electrolyte for a lithium secondary battery is disclosed herein. In some embodiments, an electrolyte includes a lithium salt present in a concentration of 1.6 M to 5 M, an oligomer mixture including a first oligomer containing a unit represented by Formula 1 and a second oligomer containing a unit represented by Formula 2, and an organic solvent.

公开(公告)号：US11710852B2

公开(公告)日：2023-07-25

申请号：US16769694

申请日：2019-02-01

Applicant: LG CHEM, LTD.

Inventor： Won Kyung Shin ,  Kyoung Ho Ahn ,  Chul Haeng Lee

IPC: H01M10/0565 ,  H01M10/0525 ,  H01M50/434 ,  H01M50/431 ,  H01M50/497

CPC classification number: H01M10/0565 ,  H01M10/0525 ,  H01M50/431 ,  H01M50/434 ,  H01M50/497 ,  H01M2300/0082

Abstract: The present invention relates to a solid polymer electrolyte including a porous substrate formed of an inorganic fiber containing an ethylenically unsaturated group, a polymer compound coupled to the inorganic fiber and including a polymer network in which an oligomer containing a (meth)acrylate group is coupled in a three-dimensional structure, and a lithium salt, and to a lithium secondary battery including the same.

公开(公告)号：US11658342B2

公开(公告)日：2023-05-23

申请号：US16770833

申请日：2019-03-06

Applicant: LG Chem, Ltd.

Inventor： Won Kyung Shin ,  Kyoung Ho Ahn ,  Chul Haeng Lee ,  Jeong Woo Oh

IPC: H01M10/0568 ,  H01M10/0525 ,  H01M10/0567

CPC classification number: H01M10/0568 ,  H01M10/0525 ,  H01M10/0567

Abstract: A non-aqueous electrolyte solution and a lithium secondary battery including the same are disclosed herein. In some embodiments, the non-aqueous electrolyte solution includes an ionic solution containing at least one anion selected from the group consisting of a bis(fluorosulfonyl)imide anion and a bis(trifluoromethane)sulfonylimide anion, a cation, a non-aqueous solvent, a lithium salt, a phosphite-based additive, and a surfactant including an oligomer represented by Formula 1.

公开(公告)号：US11658340B2

公开(公告)日：2023-05-23

申请号：US16784746

申请日：2020-02-07

Applicant: LG CHEM, LTD.

Inventor： Jae Won Lee ,  Kyoung Ho Ahn ,  Chul Haeng Lee ,  Jung Hoon Lee ,  Won Kyung Shin

IPC: H01M10/0565 ,  H01M10/0568 ,  H01M10/0567 ,  H01M10/0525 ,  C08F216/14 ,  C08F218/08 ,  C08F220/36 ,  C08J3/075 ,  C08K3/32 ,  C08F216/06

CPC classification number: H01M10/0565 ,  C08F216/06 ,  C08F216/1458 ,  C08F218/08 ,  C08F220/36 ,  C08J3/075 ,  C08K3/32 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  C08J2329/04 ,  C08J2329/10 ,  C08J2331/04 ,  C08J2333/14 ,  C08K2003/324 ,  H01M2300/0025 ,  H01M2300/0082 ,  H01M2300/0085 ,  H01M2300/0091

Abstract: The present invention relates to a thermosetting electrolyte composition for a lithium secondary battery and a lithium secondary battery including the same, and particularly, to a thermosetting electrolyte composition for a lithium secondary battery, which includes LiPF6 as a first lithium salt, a non-aqueous organic solvent, and a polymer or oligomer containing a unit represented by Formula 1, wherein the polymer or oligomer containing the unit represented by Formula 1 is included in an amount of 0.6 wt % to 15 wt % based on a total weight of the thermosetting electrolyte composition for a lithium secondary battery, and a lithium secondary battery including the same.

公开(公告)号：US11658301B2

公开(公告)日：2023-05-23

申请号：US16770931

申请日：2019-04-01

Applicant: LG CHEM, LTD.

Inventor： Won Kyung Shin ,  Kyoung Ho Ahn ,  Chul Haeng Lee ,  Jae Won Lee

IPC: H01M50/449 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/058 ,  H01M50/443 ,  H01M4/02

CPC classification number: H01M4/623 ,  H01M10/058 ,  H01M10/0525 ,  H01M50/443 ,  H01M50/449 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2300/0028 ,  H01M2300/0085

Abstract: The present invention relates to a lithium secondary battery including a positive electrode, a negative electrode, a separator, which includes a coating layer including an organic binder and inorganic particles, and a gel polymer electrolyte formed by polymerization of an oligomer, wherein the organic binder and the gel polymer electrolyte are bonded by an epoxy ring-opening reaction, and a method of preparing the same.

公开(公告)号：US11476499B2

公开(公告)日：2022-10-18

申请号：US16339830

申请日：2018-03-16

Applicant: LG Chem, Ltd.

Inventor： Young Min Lim ,  Chul Haeng Lee ,  Ha Eun Kim

IPC: H01M50/44 ,  H01M10/0567 ,  C07F5/02 ,  H01M10/052 ,  H01M10/42 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569

Abstract: An electrolyte additive composition of the present invention may improve high-rate charge and discharge characteristics and high-temperature storage and life characteristics of a lithium secondary battery when the electrolyte additive composition is used in an electrolyte while including a novel borate-based lithium compound as well as a nitrile-based compound.

公开(公告)号：US20210210787A1

公开(公告)日：2021-07-08

申请号：US17054354

申请日：2019-07-26

Applicant: LG Chem, Ltd.

Inventor： Won Kyung Shin ,  Kyoung Ho Ahn ,  Chul Haeng Lee ,  Min Jung Kim ,  Jung Hoon Lee

IPC: H01M10/0568 ,  H01M10/0525 ,  H01M10/0569 ,  H01M10/0565

Abstract: An electrolyte for a lithium secondary battery is disclosed herein. In some embodiments, an electrolyte includes a lithium salt present in a concentration of 1.6 M to 5 M, an oligomer mixture including a first oligomer containing a unit represented by Formula 1 and a second oligomer containing a unit represented by Formula 2, and an organic solvent.

公开(公告)号：US11031625B2

公开(公告)日：2021-06-08

申请号：US16199719

申请日：2018-11-26

Applicant: LG Chem, Ltd.

Inventor： Kyoung Ho Ahn ,  Yi Jin Jung ,  Yu Ra Jeong ,  Chul Haeng Lee ,  Young Min Lim

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M4/131 ,  H01M4/525 ,  H01M10/0568 ,  H01M4/485

Abstract: The present invention relates to a non-aqueous electrolyte for a lithium secondary battery including a pyridine-boron-based compound as an additive and a lithium secondary battery including the same, and particularly, to a non-aqueous electrolyte including at least two types of lithium salts and a pyridine-boron-based compound and a lithium secondary battery which has an enhanced effect of suppressing an increase in resistance and generation of gas after being stored at high temperature by including both the non-aqueous electrolyte and a negative electrode including lithium titanium oxide (LTO) as a negative electrode active material.