公开(公告)号：US20250038249A1

公开(公告)日：2025-01-30

申请号：US18749353

申请日：2024-06-20

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Youngkyeong SHIN ,  Arum YU ,  Tae Hyon BAE ,  Harim LEE ,  Sanghyung KIM ,  Seunghyeon SON ,  Sanghoon KIM

IPC: H01M10/052 ,  H01M4/02 ,  H01M4/38 ,  H01M4/525 ,  H01M4/583 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569

Abstract: A lithium secondary battery includes: a positive electrode including a positive electrode active material; a negative electrode including a negative electrode active material; and an electrolyte, wherein the negative electrode has a composite density of at least 1.7 g/cc, and the electrolyte includes a lithium salt, a non-aqueous organic solvent, a first additive represented by Formula 1, a second additive represented by Formula 2, and a third additive represented by Formula 3:

公开(公告)号：US20240405275A1

公开(公告)日：2024-12-05

申请号：US18489785

申请日：2023-10-18

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Sanghyung KIM ,  Tae Hyon BAE ,  Harim LEE ,  Seunghyeon SON ,  Yunhee KIM ,  Arum YU

IPC: H01M10/0567 ,  H01M4/525 ,  H01M4/587 ,  H01M10/42

Abstract: Disclosed are an electrolyte solution for a rechargeable lithium battery and rechargeable lithium battery including the same, the an electrolyte solution for a rechargeable lithium battery including a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a first compound represented by Chemical Formula 1 and a second compound that is CsPF6 or a compound represented by Chemical Formula 2, and a weight ratio of the first compound to the second compound is about 1:0.3 to about 1:1.3.

公开(公告)号：US20240088442A1

公开(公告)日：2024-03-14

申请号：US18352946

申请日：2023-07-14

Applicant: SAMSUNG SDI CO., LTD. ,  UNIST(ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)

Inventor： Tae Hyon BAE ,  Yunhee KIM ,  Sanghyung KIM ,  Seunghyeon SON ,  Harim LEE ,  Arum YU ,  Jeong-A LEE ,  Saehun KIM ,  Nam-Soon CHOI

IPC: H01M10/0567 ,  H01M4/133 ,  H01M10/0525

CPC classification number: H01M10/0567 ,  H01M4/133 ,  H01M10/0525 ,  H01M2300/0091

Abstract: Provided are an electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the same, the electrolyte including a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive is a composition including a first compound, a second compound, and a third compound, the first compound is represented by Chemical Formula 1, the second compound is represented by Chemical Formula 2, and the third compound is a cyclic carbonate compound. Details of Chemical Formulas 1 and 2 are as described in the specification.

公开(公告)号：US20250158121A1

公开(公告)日：2025-05-15

申请号：US18795855

申请日：2024-08-06

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Olga TSAY ,  SANGHOON KIM ,  TAE HYON BAE ,  Harim LEE ,  Youngkyeong SHIN ,  Seunghyeon SON ,  Sanghyung KIM

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0569 ,  H01M10/0583 ,  H01M10/36

Abstract: A rechargeable lithium battery includes an electrolyte. The electrolyte comprises a non-aqueous organic solvent, a lithium salt, and an additive including an azide group and a sulfonyl group substituted with a halogen element.

公开(公告)号：US20240413401A1

公开(公告)日：2024-12-12

申请号：US18488893

申请日：2023-10-17

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Seunghyeon SON ,  Tae Hyon BAE ,  Yunhee KIM ,  Harim LEE ,  Arum YU ,  Sanghyung KIM

IPC: H01M10/0568 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0525

Abstract: A rechargeable lithium battery includes a positive electrode; a negative electrode; and an electrolyte, where the positive electrode includes a carbon nanotube as a conductive material, and the electrolyte includes an imide cesium salt compound represented by Chemical Formula 1 as an additive:

公开(公告)号：US20240213535A1

公开(公告)日：2024-06-27

申请号：US18489734

申请日：2023-10-18

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Harim LEE ,  Tae Hyon BAE ,  Sanghyung KIM ,  Seunghyeon SON ,  Yunhee KIM ,  Arum YU

IPC: H01M10/0567 ,  H01M10/0525

CPC classification number: H01M10/0567 ,  H01M10/0525

Abstract: An electrolyte solution for a rechargeable lithium battery includes a non-aqueous organic solvent, a lithium salt, and an additive, where the additive includes a first compound that is CsPF5 or a compound represented by Chemical Formula 1, a second compound represented by Chemical Formula 2, and a silver salt. In addition, a rechargeable lithium battery including the electrolyte solution is also provided.

公开(公告)号：US20240128509A1

公开(公告)日：2024-04-18

申请号：US18013183

申请日：2022-03-30

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Seunghyeon SON ,  Tae Hyon BAE ,  Sanghyung KIM ,  Harim LEE

IPC: H01M10/0567 ,  H01M4/133 ,  H01M4/134 ,  H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M10/052

CPC classification number: H01M10/0567 ,  H01M4/133 ,  H01M4/134 ,  H01M4/366 ,  H01M4/386 ,  H01M4/587 ,  H01M10/052 ,  H01M2004/027

Abstract: Provided are an electrolyte for a rechargeable lithium battery including a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive is a composition including a first compound and a second compound, the first compound is an imide cesium salt compound represented by Chemical Formula 1, and the second compound is a crown ether compound represented by Chemical Formula 2.
Details of Chemical Formulas 1 and 2 are as described in the specification.

公开(公告)号：US20250158119A1

公开(公告)日：2025-05-15

申请号：US18766280

申请日：2024-07-08

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Olga TSAY ,  Seunghyeon SON ,  SANGHOON KIM ,  TAE HYON BAE ,  Harim LEE ,  Youngkyeong SHIN ,  Sanghyung KIM

IPC: H01M10/0567 ,  H01M10/052 ,  H01M10/0569

Abstract: An electrolyte for a rechargeable lithium battery includes a non-aqueous organic solvent, a lithium salt, and a salt additive including a sulfonyl group substituted with a perhalogenated alkyl group and a cyano group. In addition, a rechargeable lithium battery including the electrolyte is also disclosed.

公开(公告)号：US20250046874A1

公开(公告)日：2025-02-06

申请号：US18488930

申请日：2023-10-17

Applicant: SAMSUNG SDI CO., LTD. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Tae Hyon BAE ,  Harim LEE ,  Sanghyung KIM ,  Aehui GOH ,  Seunghyeon SON ,  Arum YU ,  Sanghoon KIM ,  Nam-Soon CHOI ,  Saehun KIM ,  Jeong-A LEE

IPC: H01M10/0569 ,  H01M4/52 ,  H01M4/583 ,  H01M10/0567 ,  H01M10/0568

Abstract: An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the electrolyte are provided. The electrolyte includes a non-aqueous organic solvent and a lithium salt, and the non-aqueous organic solvent includes about 10 to 30 vol % of a halogenated N,N-dialkyl methanesulfonamide solvent, based on a total amount of the non-aqueous organic solvent.

公开(公告)号：US20250038270A1

公开(公告)日：2025-01-30

申请号：US18732446

申请日：2024-06-03

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Sanghyung KIM ,  Tae Hyon BAE ,  Harim LEE ,  Seunghyeon SON ,  Youngkyeong SHIN ,  Sanghoon KIM ,  Arum YU

IPC: H01M10/0569 ,  H01M4/02 ,  H01M4/525 ,  H01M4/583 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568

Abstract: A rechargeable lithium battery may include a positive electrode including a positive electrode active material; a negative electrode including a negative electrode active material; and an electrolyte, wherein an active mass density of the negative electrode is greater than or equal to about 1.7 g/cc, and the electrolyte includes a lithium salt; a non-aqueous organic solvent; and an additive represented by Chemical Formula 1: