公开(公告)号：EP4391136A1

公开(公告)日：2024-06-26

申请号：EP22887558.9

申请日：2022-10-25

申请人： LG Energy Solution, Ltd.

发明人： PARK, Sol Ji ,  LEE, Jung Hoon ,  LEE, Chul Haeng ,  KANG, Yoo Sun ,  LEE, Jae Won

IPC分类号： H01M10/0567 ,  H01M10/052 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/505 ,  H01M4/36 ,  H01M4/587

CPC分类号： Y02E60/10 ,  H01M10/052 ,  H01M10/0567 ,  H01M4/36 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587

摘要： The present invention relates to a non-aqueous electrolyte solution for a lithium secondary battery comprising an organic solvent; a lithium salt; a first additive which is a compound represented by Formula 1; a second additive which is a compound represented by Formula 2; and a third additive which is one or more selected from the group consisting of vinylene carbonate and vinylethylene carbonate, and a lithium secondary battery comprising the non-aqueous electrolyte solution.

公开(公告)号：EP4462542A1

公开(公告)日：2024-11-13

申请号：EP23767145.8

申请日：2023-03-07

申请人： LG Energy Solution, Ltd.

发明人： KANG, Yoo Sun ,  LEE, Chul Haeng ,  LEE, Jung Hoon ,  PARK, Sol Ji ,  LEE, Jae Won

IPC分类号： H01M10/0567 ,  H01M10/052

摘要： The present disclosure relates to an electrolyte solution additive for a lithium secondary battery, a non-aqueous electrolyte solution for a lithium secondary battery comprising the same, and a lithium secondary battery. Specifically, the electrolyte solution additive for a lithium secondary battery of the present disclosure may comprise a compound represented by Formula 1.

公开(公告)号：EP4379890A1

公开(公告)日：2024-06-05

申请号：EP22884029.4

申请日：2022-10-19

申请人： LG Energy Solution, Ltd.

发明人： LEE, Jae Won ,  LEE, Jung Hoon ,  LEE, Chul Haeng ,  KANG, Yoo Sun ,  PARK, Sol Ji

IPC分类号： H01M10/0567 ,  H01M4/525 ,  H01M4/505 ,  H01M10/052

CPC分类号： Y02E60/10 ,  H01M10/052 ,  H01M10/0567 ,  H01M4/505 ,  H01M4/525

摘要： The present invention relates to a lithium secondary battery including: a non-aqueous electrolyte including a lithium salt, an organic solvent, a first additive represented by Chemical Formula 1 and a second additive represented by Chemical Formula 2; a positive electrode including a positive electrode active material including a lithium composite transition metal oxide having a nickel content of 70 mol% or more among a total transition metal content; a negative electrode including an negative electrode active material; and a separator interposed between the positive electrode and the negative electrode.

公开(公告)号：EP4293783A1

公开(公告)日：2023-12-20

申请号：EP22870274.2

申请日：2022-09-14

申请人： LG Energy Solution Ltd.

发明人： PARK, Sol Ji ,  LEE, Jung Hoon ,  LEE, Chul Haeng ,  KANG, Yoo Sun ,  LEE, Jae Won

IPC分类号： H01M10/0567 ,  H01M10/052 ,  H01M4/525 ,  H01M4/505

摘要： The present invention relates to a non-aqueous electrolyte for a lithium secondary battery, and a lithium secondary battery comprising same, the electrolyte comprising a compound represented by chemical formula 1, a lithium salt, and an organic solvent.

公开(公告)号：EP4224590A1

公开(公告)日：2023-08-09

申请号：EP22867657.3

申请日：2022-09-06

申请人： LG Energy Solution, Ltd.

发明人： LEE, Jung Hoon ,  LEE, Chul Haeng ,  KANG, Yoo Sun ,  PARK, Sol Ji ,  LEE, Jae Won

IPC分类号： H01M10/058 ,  H01M10/44 ,  H01M10/0567 ,  H01M10/052

摘要： Provided is a method of activating a secondary battery, which includes an operation of deriving a reduction reaction voltage according to an electrolyte additive, a pre-charging operation of pre-charging the secondary battery into which an electrolyte containing the electrolyte additive is injected, and a pre-aging operation of wetting an electrode assembly accommodated in the secondary battery with the injected electrolyte and aging the electrode assembly, wherein a charging termination voltage in the pre-charging operation is less than the reduction reaction voltage.

公开(公告)号：EP4195311A1

公开(公告)日：2023-06-14

申请号：EP21869762.1

申请日：2021-09-16

申请人： LG Energy Solution, Ltd.

发明人： RYU, Ji Hoon ,  JUNG, Bum Young ,  LEE, Jung Hoon ,  YOON, Yeo Min ,  LEE, Jae Won ,  KANG, Yong Hee

IPC分类号： H01M4/131 ,  H01M4/62 ,  H01M4/1391 ,  H01M10/0565 ,  H01M10/058 ,  H01M10/052 ,  H01M4/02

摘要： The present invention relates to a lithium secondary battery and a manufacturing method thereof capable of improving the lifespan properties and high-temperature storage properties of the lithium secondary battery, wherein the lithium secondary battery includes a positive electrode including a positive electrode active material layer containing a positive electrode material and one or more additives selected from succinonitrile (SN), propane sultone (PS), and propene sultone (PRS); a negative electrode; a separator interposed between the positive electrode and the negative electrode; and a gel polymer electrolyte, wherein the additive is included in an amount of 0.2 parts by weight to 5.0 parts by weight based on 100 parts by weight of the positive electrode active material layer.

公开(公告)号：EP4394987A1

公开(公告)日：2024-07-03

申请号：EP22883994.0

申请日：2022-10-18

申请人： LG Energy Solution, Ltd.

发明人： KANG, Yoo Sun ,  LEE, Chul Haeng ,  LEE, Jung Hoon ,  PARK, Sol Ji ,  LEE, Jae Won

IPC分类号： H01M10/0567 ,  H01M10/052 ,  H01M4/525 ,  H01M4/505

CPC分类号： Y02E60/10 ,  H01M10/052 ,  H01M10/0567 ,  H01M4/505 ,  H01M4/525

摘要： The present disclosure relates to a non-aqueous electrolyte solution for a lithium secondary battery capable of forming a stable film on the surface of an electrode, and a lithium secondary battery including the same. Specifically, the non-aqueous electrolyte solution for a lithium secondary battery of the present disclosure may include a lithium salt, a non-aqueous organic solvent, and a compound represented by Formula 1.

公开(公告)号：EP3863099A1

公开(公告)日：2021-08-11

申请号：EP19883207.3

申请日：2019-11-06

申请人： LG ENERGY SOLUTION, LTD.

发明人： AHN, Kyoung Ho ,  LEE, Jung Hoon ,  SHIN, Won Kyung ,  LEE, Jae Won ,  KIM, Min Jung ,  LEE, Chul Haeng

IPC分类号： H01M10/0565 ,  H01M10/42 ,  H01M10/052

摘要： The present invention relates to a composition for a gel polymer electrolyte, which includes a lithium salt, a non-aqueous organic solvent, a polymerization initiator, and an oligomer containing a polycarbonate-based repeating unit, a gel polymer electrolyte in which mechanical strength and ion transfer capability are improved by polymerization of the composition for a gel polymer electrolyte, and a lithium secondary battery in which external impact and stability during high-temperature storage are improved by including the gel polymer electrolyte.