公开(公告)号：US20220246976A1

公开(公告)日：2022-08-04

申请号：US17615690

申请日：2020-08-27

Applicant: LG Energy Solution, Ltd.

Inventor： Gwang Yeon Kim ,  Jeong Woo Oh ,  Chul Haeng Lee

IPC: H01M10/056 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  H01M4/38

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 an organic solvent, a lithium salt, and an oligomer represented by Formula 1 as a surfactant, wherein the organic solvent contains containing cyclic carbonate, dimethyl carbonate, and alkyl formate.

公开(公告)号：US12125980B2

公开(公告)日：2024-10-22

申请号：US17311831

申请日：2019-12-12

Applicant: LG Energy Solution, Ltd.

Inventor： Gwang Yeon Kim ,  Jeong Woo Oh ,  Chul Haeng Lee ,  Hyung Tae Kim

IPC: H01M10/0567 ,  C07C271/24 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569

CPC classification number: H01M10/0567 ,  C07C271/24 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0025

Abstract: An electrolyte for a lithium secondary battery, and a lithium secondary battery including the same are disclosed herein. In some embodiments, an electrolyte for a lithium secondary battery includes a lithium salt having a molar concentration of 1.5 M to 2.0 M, an oligomer containing a unit represented by Formula 1 and having an acrylate group at an end thereof, a first additive represented by Formula 2, and an organic solvent.

公开(公告)号：US20220021030A1

公开(公告)日：2022-01-20

申请号：US17311831

申请日：2019-12-12

Applicant: LG Energy Solution, Ltd.

Inventor： Gwang Yeon Kim ,  Jeong Woo Oh ,  Chul Haeng Lee ,  Hyung Tae Kim

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  C07C271/24

Abstract: An electrolyte for a lithium secondary battery, and a lithium secondary battery including the same are disclosed herein. In some embodiments, an electrolyte for a lithium secondary battery includes a lithium salt having a molar concentration of 1.5 M to 2.0 M, an oligomer containing a unit represented by Formula 1 and having an acrylate group at an end thereof, a first additive represented by Formula 2, and an organic solvent.

公开(公告)号：US12068447B2

公开(公告)日：2024-08-20

申请号：US17876628

申请日：2022-07-29

Applicant: LG Energy Solution, Ltd.

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

IPC: H01M10/052 ,  H01M4/50 ,  H01M4/52 ,  H01M4/525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M50/40 ,  H01M4/02 ,  H01M4/505 ,  H01M10/0568

CPC classification number: H01M10/052 ,  H01M4/50 ,  H01M4/52 ,  H01M4/525 ,  H01M10/0567 ,  H01M50/40 ,  H01M2004/027 ,  H01M2004/028 ,  H01M4/505 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0034 ,  H01M2300/0065

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：US20220263113A1

公开(公告)日：2022-08-18

申请号：US17623754

申请日：2020-09-28

Applicant: LG Energy Solution, Ltd.

Inventor： Gwang Yeon Kim ,  Jeong Woo Oh ,  Chul Haeng Lee

IPC: H01M10/056 ,  H01M10/0525 ,  H01M4/583 ,  H01M4/36 ,  H01M4/38 ,  H01M4/505 ,  H01M4/525

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 an organic solvent containing cyclic carbonate, dimethyl carbonate, and a nitrile-based solvent represented by Formula 1, and a lithium salt: R—CN  [Formula 1] wherein, in Formula 1, R is an alkyl group having 3 to 10 carbon atoms or an alkenyl group having 3 to 10 carbon atoms.

公开(公告)号：US20240014379A1

公开(公告)日：2024-01-11

申请号：US18025580

申请日：2022-05-06

Applicant: LG Energy Solution, Ltd.

Inventor： Gwang Yeon Kim ,  Sang Seung Oh ,  Hye Hyeon Kim ,  Chi Ho Jo

IPC: H01M4/1391 ,  H01M4/505 ,  H01M4/525 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/36

CPC classification number: H01M4/1391 ,  H01M4/505 ,  H01M4/525 ,  H01M4/0435 ,  H01M10/0525 ,  H01M4/364 ,  H01M4/366 ,  H01M2004/028

Abstract: Provided is a positive electrode for a lithium secondary battery with improved structural stability, a manufacturing method thereof, and a lithium secondary battery including the same. When the positive electrode containing a positive electrode additive is manufactured, the conditions of first and second rolling operations are controlled so that there is an advantage in that structures and electrical properties of a first mixture layer and a second mixture layer can be improved.

公开(公告)号：US20230261168A1

公开(公告)日：2023-08-17

申请号：US18003788

申请日：2022-05-06

Applicant: LG Energy Solution, Ltd.

Inventor： Gwang Yeon Kim ,  Sang Seung Oh ,  Hye Hyeon KIM ,  Chi Ho Jo

IPC: H01M4/04 ,  H01M4/525 ,  H01M4/505 ,  H01M4/131

CPC classification number: H01M4/0404 ,  H01M4/0435 ,  H01M4/525 ,  H01M4/505 ,  H01M4/131 ,  H01M2004/028

Abstract: Provided are a positive electrode including a positive electrode additive, a method of manufacturing the positive electrode, and a lithium secondary battery including the positive electrode. A coating temperature of a slurry is adjusted when the positive electrode is manufactured, and thus the deformation of the positive electrode additive due to temperature is minimized, and accordingly, structural deformation of the positive electrode additive included in the positive electrode is prevented.

公开(公告)号：US20250149623A1

公开(公告)日：2025-05-08

申请号：US19008264

申请日：2025-01-02

Applicant: LG Energy Solution, Ltd.

Inventor： Gwang Yeon Kim ,  Sang Seung Oh ,  Seongsoo Kim ,  Jaebeom Jeon ,  Hanjoo Jo

IPC: H01M10/052 ,  H01M4/02 ,  H01M4/133 ,  H01M4/134 ,  H01M10/0569

Abstract: A secondary battery including a positive electrode and a negative electrode. The negative electrode includes a silicon-based active material and a carbon-based active material. The positive electrode includes a lithium nickel-based active material in the form of a single particle, and one or more of LCO (LiCoO2), LMO (LiMn2O4) and LFP (LiFePO4) in the form of secondary particles. The lithium nickel-based active material in the form of a single particle contains 55 mol. % or more of nickel with respect to 100 mol. % of metals excluding lithium.

公开(公告)号：US12199233B2

公开(公告)日：2025-01-14

申请号：US17615690

申请日：2020-08-27

Applicant: LG Energy Solution, Ltd.

Inventor： Gwang Yeon Kim ,  Jeong Woo Oh ,  Chul Haeng Lee

IPC: H01M10/056 ,  H01M4/02 ,  H01M4/38 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  H01M10/0525

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 an organic solvent, a lithium salt, and an oligomer represented by Formula 1 as a surfactant, wherein the organic solvent contains containing cyclic carbonate, dimethyl carbonate, and alkyl formate.