公开(公告)号：US20250046869A1

公开(公告)日：2025-02-06

申请号：US18734916

申请日：2024-06-05

Applicant: Samsung SDI Co., Ltd. ,  UNIST(ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)

Inventor： Myungheui WOO ,  Hyejin PARK ,  Sanghoon KIM ,  Arum YU ,  Nam-Soon CHOI

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

Abstract: A liquid electrolyte includes: a lithium salt; a non-aqueous organic solvent; and an additive, wherein the additive comprises a polymer represented by Chemical Formula 1: in Chemical Formula 1, R1 to R3 are each independently hydrogen, fluorine, or a substituted or unsubstituted C1 to C10 alkyl group, and n and m are mole fractions, respectively, 50 mol %≤n≤90 mol %, 10 mol %≤m≤50 mol %.

公开(公告)号：US20250046868A1

公开(公告)日：2025-02-06

申请号：US18666680

申请日：2024-05-16

Applicant: SAMSUNG SDI CO., LTD.

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

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

Abstract: Disclosed is a rechargeable lithium battery, the rechargeable lithium battery including 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; a first additive represented by Chemical Formula 1; a second additive represented by Chemical Formula 2; and a third additive represented by Chemical Formula 3. The description of each chemical formula is provided in the specification.

公开(公告)号：US20250038264A1

公开(公告)日：2025-01-30

申请号：US18732462

申请日：2024-06-03

Applicant: Samsung SDI Co., Ltd.

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

IPC: H01M10/0567 ,  H01M4/02 ,  H01M4/38 ,  H01M4/583 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569

Abstract: An electrolyte for a rechargeable lithium battery may include a lithium salt; a non-aqueous organic solvent; a first additive represented by Chemical Formula 1; and a second additive represented by Chemical Formula 2: R1—O—R2  Chemical Formula 1 R3—O—R4.  Chemical Formula 2 The description of each chemical formulas follows the specification.

公开(公告)号：US20250038259A1

公开(公告)日：2025-01-30

申请号：US18667914

申请日：2024-05-17

Applicant: SAMSUNG SDI CO., LTD.

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

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

Abstract: Disclosed is a rechargeable lithium battery, the rechargeable lithium battery including 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; a first additive represented by Chemical Formula 1; and a second additive represented by Chemical Formula 2:

公开(公告)号：US20250006981A1

公开(公告)日：2025-01-02

申请号：US18646736

申请日：2024-04-25

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Sangwoo PARK ,  Hyunbong CHOI ,  Sanghoon KIM ,  Hongryeol PARK ,  Dahyun KIM ,  Sundae KIM ,  Yeji YANG

IPC: H01M10/0525 ,  H01M4/02 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569

Abstract: Disclosed are a rechargeable lithium battery including a positive electrode including a positive electrode active material; a negative electrode including a negative electrode active material; and an electrolyte solution including a lithium salt, a non-aqueous organic solvent, and an additive, wherein the positive electrode active material includes a cobalt-free lithium nickel manganese-based oxide, the non-aqueous organic solvent includes less than or equal to about 5 wt % of ethylene carbonate based on a total amount of the electrolyte solution, and the additive includes a phosphorus-based compound including a trialkylsilyl group.

公开(公告)号：US20240405280A1

公开(公告)日：2024-12-05

申请号：US18679108

申请日：2024-05-30

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Hongryeol PARK ,  Hyunbong CHOI ,  Injun PARK ,  Sangwoo PARK ,  Sohee KIM ,  Yeji YANG ,  Sanghoon KIM

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

Abstract: A rechargeable lithium battery including a positive electrode including a cobalt-free positive electrode active material with a layered structure, a negative electrode, and an electrolyte is provided.

公开(公告)号：US20240154174A1

公开(公告)日：2024-05-09

申请号：US18464061

申请日：2023-09-08

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Hyunbong CHOI ,  Sundae KIM ,  Sangwoo PARK ,  Dahyun KIM ,  Yeji YANG ,  Hongryeol PARK ,  Sanghoon KIM

IPC: H01M10/0569 ,  H01M4/38 ,  H01M4/505 ,  H01M10/0567

CPC classification number: H01M10/0569 ,  H01M4/386 ,  H01M4/505 ,  H01M10/0567 ,  H01M2004/028

Abstract: A rechargeable lithium battery includes an electrolyte solution including a non- aqueous organic solvent and a lithium salt; a positive electrode including a positive electrode active material; and a negative electrode including a negative electrode active material, where the non-aqueous organic solvent includes less than about 5 wt % of ethylene carbonate, based on the total weight of the non-aqueous organic solvent, and the positive electrode active material includes a cobalt-free lithium nickel manganese-based oxide.

公开(公告)号：US20230327198A1

公开(公告)日：2023-10-12

申请号：US17988646

申请日：2022-11-16

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Hyunbong CHOI ,  Yeji YANG ,  Sangwoo PARK ,  Sundae KIM ,  Sanghoon KIM ,  Hongryeol PARK ,  Dahyun KIM

IPC: H01M10/0567 ,  H01M10/0569 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/38 ,  H01M4/587 ,  H01M4/36

CPC classification number: H01M10/0567 ,  H01M10/0569 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/386 ,  H01M4/587 ,  H01M4/366 ,  H01M2300/004 ,  H01M2300/0037

Abstract: A rechargeable lithium battery including an electrolyte solution including a non-aqueous organic solvent, a lithium salt, and an additive; a positive electrode including a positive active material; and a negative electrode including a negative active material is provided. The additive includes a compound represented by Chemical Formula 1, and the positive active material includes a cobalt-free lithium nickel manganese-based oxide.

公开(公告)号：US20230318034A1

公开(公告)日：2023-10-05

申请号：US18012887

申请日：2022-02-16

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Dahyun KIM ,  Minseo KIM ,  Sanghyung KIM ,  Sanghoon KIM ,  Hyejin PARK ,  Myungheui WOO ,  Bokyung RYU ,  Tae Jin LEE

IPC: H01M10/0567

CPC classification number: H01M10/0567

Abstract: Provided are an electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including 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 represented by Chemical Formula 1 and a second compound represented by Chemical Formula 2.
Details of Chemical Formulas 1 and 2 are the same as those described in the specification.

公开(公告)号：US20230318033A1

公开(公告)日：2023-10-05

申请号：US18003679

申请日：2021-12-06

Applicant: SAMSUNG SDI CO., LTD. ,  SOGANG UNIVERSITY RESEARCH & BUSINESS DEVELOPMENT FOUNDATION

Inventor： Tae Jin LEE ,  Bongjin MOON ,  Youngchan BANG ,  Wonseok CHO ,  Soojin KIM ,  Sanghoon KIM ,  Injun PARK ,  Myungheui WOO ,  Junyong LEE ,  Hyejeong JEONG

IPC: H01M10/0567 ,  H01M4/525 ,  H01M10/0569 ,  C07C323/52 ,  C08G75/16

CPC classification number: H01M10/0567 ,  C07C323/52 ,  C08G75/16 ,  H01M4/525 ,  H01M10/0569 ,  H01M2004/028 ,  H01M2300/004

Abstract: Provided are an additive represented by Chemical Formula 1, an electrolyte for a lithium secondary battery including the same, and a lithium secondary battery.
The details of Chemical Formula 1 are as set forth in the specification.