公开(公告)号：US11682794B2

公开(公告)日：2023-06-20

申请号：US16610637

申请日：2018-11-20

Applicant: LG Chem, Ltd.

Inventor： Sung Hoon Yu ,  Chul Haeng Lee ,  Yoo Sun Kang

IPC: H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  C07F9/09 ,  C07F9/14

CPC classification number: H01M10/0567 ,  C07F9/091 ,  C07F9/14 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0037

Abstract: An additive, a non-aqueous electrolyte for a lithium secondary battery including the same, and a lithium secondary battery including the same are disclosed herein. In some embodiments, an additive includes at least one compound selected from the group consisting of the compounds represented by Formula 1 and Formula 2. In some embodiments, a non-aqueous electrolyte includes a lithium salt, an organic solvent, and an additive including at least one compound selected from the group consisting of the compounds represented by Formula 1 and Formula 2.

公开(公告)号：US20220367904A1

公开(公告)日：2022-11-17

申请号：US17876628

申请日：2022-07-29

Applicant: LG Chem, Ltd.

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

IPC: H01M10/052 ,  H01M10/0567 ,  H01M4/525 ,  H01M50/40 ,  H01M4/50 ,  H01M4/52

Abstract: The present invention relates to a lithium secondary battery which includes a non-aqueous electrolyte solution including lithium bis(fluorosulfonyl)imide (LiFSI) and a fluorobiphenyl compound, a positive electrode including a lithium-nickel-manganese-cobalt-based oxide as a positive electrode active material, a negative electrode, and a separator.

公开(公告)号：US11476500B2

公开(公告)日：2022-10-18

申请号：US16635405

申请日：2019-02-12

Applicant: LG Chem, Ltd.

Inventor： Hyun Seung Kim ,  Chul Haeng Lee ,  Sung Hoon Yu ,  Hyun Yeong Lee

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0569

Abstract: A non-aqueous electrolyte solution and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution includes a lithium salt, an organic solvent, and a compound represented by Formula 1 as an additive. The compound has an excellent effect of removing a decomposition product, such as HF and PF5, generated from the lithium salt in the electrolyte solution. The lithium secondary battery has improved high-temperature storage characteristics by including the non-aqueous electrolyte solution.

公开(公告)号：US11431025B2

公开(公告)日：2022-08-30

申请号：US15759019

申请日：2017-03-30

Applicant: LG Chem, Ltd.

Inventor： Kyoung Ho Ahn ,  Jung Hoon Lee ,  Chul Haeng Lee ,  Jeong Woo Oh ,  Sol Ji Park

IPC: H01M10/0565 ,  H01M10/0525

Abstract: The present invention relates to a composition for a gel polymer electrolyte, a gel polymer electrolyte prepared using the same and an electrochemical device including the same, and specifically provides a composition for a gel polymer electrolyte including an oligomer which includes a compound represented by Formula 1 and a compound represented by Formula 2, provides a gel polymer electrolyte prepared using the same, and provides an electrochemical device including the same.

公开(公告)号：US11316194B2

公开(公告)日：2022-04-26

申请号：US16761488

申请日：2019-01-03

Applicant: LG CHEM, LTD.

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

IPC: H01M10/0565 ,  H01M10/0525 ,  H01M10/052

Abstract: The present invention relates to a gel polymer electrolyte composition and a lithium secondary battery including the same, and particularly, to a gel polymer electrolyte composition, in which flame retardancy is improved by including an ionic liquid, instead of a non-aqueous organic solvent, as well as a lithium salt, a polymerization initiator, and an oligomer having a specific structure, and a lithium secondary battery in which high-temperature stability is improved by including the same.

公开(公告)号：US11114692B2

公开(公告)日：2021-09-07

申请号：US16468589

申请日：2018-07-03

Applicant: LG Chem, Ltd.

Inventor： Sol Ji Park ,  Kyoung Ho Ahn ,  Young Jea Kim ,  Yong Jin Jang ,  Joong Jin Han ,  Chul Haeng Lee

IPC: H01M10/0565 ,  H01M10/0525 ,  C08G61/12

Abstract: The present invention relates to a polymer electrolyte for a secondary battery and a lithium secondary battery comprising the same, and particularly, to a polymer electrolyte for a secondary battery, in which mechanical properties, ionic conductivity, and electrical conductivity are improved by comprising a polymer and an electron-acceptor having at least one double bond, as a dopant, and a lithium secondary battery in which electrochemical stability at high temperature and high voltage is enhanced by comprising the polymer electrolyte.

公开(公告)号：US11081729B2

公开(公告)日：2021-08-03

申请号：US16340269

申请日：2018-07-06

Applicant: LG Chem, Ltd.

Inventor： Hyun Seung Kim ,  Sung Hoon Yu ,  Jeong Woo Oh ,  Chul Haeng Lee

IPC: H01M10/0567 ,  C07C229/30 ,  C07D207/16 ,  C07D211/60 ,  C07D233/90 ,  C07D241/04 ,  C07D295/145 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/02

Abstract: The present invention relates to a non-aqueous electrolyte solution additive, and a non-aqueous electrolyte solution for a lithium-ion battery and a lithium-ion battery which include the same, and particularly, to a non-aqueous electrolyte solution, which may remove an acid generated by the decomposition of a lithium salt while being able to suppress the dissolution of metal impurities causing failure in the battery by using and including a Lewis base compound containing a propargyl group as a non-aqueous electrolyte solution additive for a lithium-ion battery, and a lithium secondary battery in which transition metal dissolution in a positive electrode and a low-voltage phenomenon are improved.

公开(公告)号：US20210202993A1

公开(公告)日：2021-07-01

申请号：US16979007

申请日：2019-07-26

Applicant: LG Chem, Ltd.

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

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0568 ,  C08F283/04

Abstract: An electrolyte for a lithium secondary battery is disclosed herein. In some embodiments, an electrolyte which includes a lithium salt having a concentration of 1.6 M to 5 M, an oligomer mixture which includes 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：US20210151799A1

公开(公告)日：2021-05-20

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

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：US20200343577A1

公开(公告)日：2020-10-29

申请号：US16955211

申请日：2019-04-19

Applicant: LG Chem, Ltd.

Inventor： Sol Ji Park ,  Kyoung Ho Ahn ,  Chul Haeng Lee ,  Jun Hyeok Han

IPC: H01M10/056 ,  H01M10/0525 ,  C08K3/22

Abstract: The present invention provides an electrolyte for a lithium secondary battery and a lithium secondary battery including the same, the electrolyte including a polymer, and one or more selected from the group consisting of an inorganic solid electrolyte particle and a ferrodielectric, wherein the polymer includes one or more selected from the group consisting of a polymer represented by Formula 1 and a polymer including a repeating unit represented by Formula 2.