公开(公告)号：EP4213265A1

公开(公告)日：2023-07-19

申请号：EP22781544.6

申请日：2022-03-28

申请人： Lg Chem, Ltd. ,  LG Energy Solution, Ltd.

发明人： KIM, Su Jeong ,  YOON, Jeong Ae ,  LEE, Jung Min ,  LEE, Mi Sook ,  LEE, Won Kyun ,  JANG, Duk Hun ,  NOH, Chan Woo ,  YEOM, Chul Eun ,  KIM, Kyoung Hoon ,  LEE, Chul Haeng

IPC分类号： H01M10/0567 ,  H01M10/052

摘要： The present invention relates to a compound having a cyclic sulfur oxide structure, and a non-aqueous electrolyte solution additive, a non-aqueous electrolyte solution, and a lithium secondary battery which include the same, wherein the lithium secondary battery of the present invention may achieve improved effects in terms of high-temperature stability and gas generation while being able to achieve stable performance for a long time.

公开(公告)号：EP4365169A1

公开(公告)日：2024-05-08

申请号：EP22856269.0

申请日：2022-08-12

申请人： LG Chem, Ltd. ,  LG Energy Solution, Ltd.

发明人： LEE, Mi Sook ,  YOON, Jeong Ae ,  KIM, Su Jeong ,  LEE, Chul Haeng ,  LEE, Jung Min ,  YEOM, Chul Eun

IPC分类号： C07D327/04 ,  C07D327/06 ,  H01M10/0567

CPC分类号： Y02E60/10 ,  H01M10/0567 ,  C07D327/04 ,  C07D327/06

摘要： The present invention relates to a precursor compound which can be used when preparing an annular sulfonic acid ester derivative compound, and a preparation method thereof.

公开(公告)号：EP4269398A1

公开(公告)日：2023-11-01

申请号：EP22776102.0

申请日：2022-03-23

申请人： Lg Chem, Ltd. ,  LG Energy Solution, Ltd.

发明人： KIM, Jung Keun ,  KIM, Su Jeong ,  LEE, Mi Sook ,  LEE, Won Kyun ,  JANG, Duk Hun ,  YOON, Jeong Ae ,  KIM, Kyoung Hoon ,  LEE, Chul Haeng ,  OH, Mi Yeon ,  LEE, Kil Sun ,  LEE, Jung Min ,  KANG, Esder ,  NOH, Chan Woo ,  YEOM, Chul Eun

IPC分类号： C07D327/04 ,  H01M10/0567 ,  H01M10/052

摘要： The present invention relates to: a compound represented by chemical formula I disclosed in the present specification, wherein the compound can reduce the flammability of a non-aqueous electrolytic solution when included in the non-aqueous electrolytic solution, and can improve the lifespan characteristics of a battery by forming an electrode-electrolyte interface that has a low resistance and is stable even at high temperatures; a non-aqueous electrolytic solution comprising same; and a lithium secondary battery.

公开(公告)号：EP4456244A1

公开(公告)日：2024-10-30

申请号：EP23753161.1

申请日：2023-02-08

申请人： LG Energy Solution, Ltd.

发明人： LEE, Jung Min ,  HAN, Jung Gu ,  JI, Su Hyeon ,  YEOM, Chul Eun ,  LEE, Chul Haeng ,  LEE, Kyung Mi

IPC分类号： H01M10/0567 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0568 ,  H01M10/0569

摘要： The present invention relates to a non-aqueous electrolyte including an organic solvent, a lithium salt, and a coumarin-based compound represented by the following Chemical Formula 1 and a lithium secondary battery including the non-aqueous electrolyte:

in Chemical Formula 1, R is a substituent including one or more elements selected from the group consisting of C, O, N, B, S, P, Si, and F, and n is an integer of 1 to 6.

公开(公告)号：EP4435921A1

公开(公告)日：2024-09-25

申请号：EP22911650.4

申请日：2022-11-23

申请人： LG Energy Solution, Ltd.

发明人： AN, Yu Ha ,  OH, Jeong Woo ,  LEE, Chul Haeng

IPC分类号： H01M10/0567 ,  H01M4/58 ,  H01M10/052 ,  H01M4/587

CPC分类号： Y02E60/10 ,  H01M4/5825 ,  H01M4/583 ,  H01M50/46 ,  H01M2004/02720130101 ,  H01M2300/002520130101 ,  H01M2300/005120130101 ,  H01M2300/003720130101 ,  H01M10/0569 ,  H01M4/364 ,  H01M2004/02820130101 ,  H01M10/0568 ,  H01M10/0567 ,  H01M4/587 ,  H01M10/052 ,  H01M10/0525 ,  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 iron phosphate-based composite oxide; 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：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：EP4369457A1

公开(公告)日：2024-05-15

申请号：EP23740523.8

申请日：2023-01-13

申请人： LG Energy Solution, Ltd.

发明人： CHO, Yoon Gyo ,  OH, Jeong Woo ,  LEE, Chul Haeng

IPC分类号： H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/052 ,  C08L29/10 ,  C08F216/14 ,  H01M4/38 ,  H01M4/02

CPC分类号： Y02E60/10 ,  C08F216/14 ,  C08L29/10 ,  H01M4/02 ,  H01M4/38 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/052

摘要： The present invention provides a non-aqueous electrolyte including an additive for a non-aqueous electrolyte, the additive including a repeating unit represented by Formula 1 and Formula 2 below.

In Formula 1 above, X may be a perfluoroalkyl group having 1 to 10 carbon atoms, and
R1 may be any one selected from the group consisting of H, an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, an alkynyl group having 2 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, a cycloalkenyl group having 3 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, a halogen atom, and a nitrile group.
In Formula 2 above, R may be an alkyl group having 1 to 10 carbon atoms which is substituted with at least one nitrile group, and
R2 may be any one selected from the group consisting of H, an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, an alkynyl group having 2 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, a cycloalkenyl group having 3 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, a halogen atom, and a nitrile group.

公开(公告)号：EP4340095A1

公开(公告)日：2024-03-20

申请号：EP22890483.5

申请日：2022-11-07

申请人： LG Energy Solution, Ltd.

发明人： YEOM, Chul Eun ,  LEE, Kyung Mi ,  HAN, Jung Gu ,  LEE, Jung Min ,  LEE, Chul Haeng

IPC分类号： H01M10/0567 ,  H01M4/525 ,  H01M4/505 ,  H01M4/36 ,  H01M4/62 ,  H01M10/052 ,  H01M4/02

摘要： The present disclosure provides a lithium secondary battery capable of improving high-temperature durability and cycle characteristics during high-voltage operation. The lithium secondary battery includes a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, a separator disposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte solution for a lithium secondary battery, wherein the positive electrode active material includes a core including a lithium cobalt-based oxide represented by Formula 1; and a shell including a lithium cobalt-based oxide represented by Formula 2 which is disposed on a surface of the core, wherein the core and the shell include at least one doping element selected from the group consisting of Al, Zr, Mg, and Ti, and the non-aqueous electrolyte solution may include a lithium salt, an organic solvent, lithium difluorophosphate, and a dinitrile-based compound represented by Formula 3.

公开(公告)号：EP4329040A1

公开(公告)日：2024-02-28

申请号：EP22878743.8

申请日：2022-09-13

申请人： LG Energy Solution, Ltd.

发明人： LEE, Kyung Mi ,  LEE, Jung Min ,  YEOM, Chul Eun ,  HAN, Jung Gu ,  LEE, Chul Haeng

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

摘要： The present disclosure relates to a non-aqueous electrolyte for a lithium secondary battery, including a lithium salt, an organic solvent and a compound represented by Chemical Formula 1; and a lithium secondary battery including the same.

in Chemical Formula 1,
R1 is each independently an alkyl group having 1 to 10 carbon atoms,
R2 is an alkylene group having 1 to 10 carbon atoms,
L is a direct bond, -O-, -COO-, -RO-, or -R'COO-,
R and R' are each independently an alkylene group having 1 to 10 carbon atoms, and
m is an integer from 0 to 5.

公开(公告)号：EP4318709A1

公开(公告)日：2024-02-07

申请号：EP23781132.8

申请日：2023-01-11

申请人： LG ENERGY SOLUTION, LTD.

发明人： SHIN, Won Kyung ,  LEE, Won Tae ,  OH, Young Ho ,  LEE, Chul Haeng ,  AHN, Kyoung Ho

IPC分类号： H01M10/0565 ,  H01M10/42 ,  H01M10/052 ,  H01M50/105

摘要： A gel polymer electrolyte composition, a secondary battery including the same, and a manufacturing method of a secondary battery are disclosed. Advantages of the disclosed aspects include increasing process efficiency by reducing the curing time of a gel polymer electrolyte while preventing leakage of an electrolyte.