公开(公告)号：US20230268552A1

公开(公告)日：2023-08-24

申请号：US18003717

申请日：2021-12-07

Applicant: Samsung SDI Co., Ltd.

Inventor： Olga TSAY ,  Hyejin Park ,  Pavel SHATUNOV ,  Sanghyung Kim ,  Sangwoo Park ,  Myungheui Woo ,  Bokyung Ryu ,  Wonseok Cho

IPC: H01M10/0567 ,  H01M10/0569

CPC classification number: H01M10/0567 ,  H01M10/0569 ,  H01M2300/0042

Abstract: An electrolyte for a lithium battery and a lithium battery including the same are provided. The electrolyte for a lithium battery may include: a lithium salt; a non-aqueous organic solvent; and an additive including a compound represented by Formula 1.

公开(公告)号：US20240322238A1

公开(公告)日：2024-09-26

申请号：US18494645

申请日：2023-10-25

Applicant: Samsung SDI Co., Ltd.

Inventor： Sundae Kim ,  Yeji Yang ,  Sangwoo Park ,  Sanghoon Kim ,  Hyunbong Choi ,  Hongryeol Park ,  Dahyun Kim

IPC: H01M10/0567 ,  H01M10/052

CPC classification number: H01M10/0567 ,  H01M10/052 ,  H01M2300/004

Abstract: An electrolyte for a lithium secondary battery and a lithium secondary battery including the same are described herein. The electrolyte for a lithium secondary battery may include a lithium salt, an organic solvent, and an additive represented by Formula 1 below.




In Formula 1, m, n, and R1 to R7 are as defined in the detailed description.

公开(公告)号：US20230327200A1

公开(公告)日：2023-10-12

申请号：US18003943

申请日：2021-12-29

Applicant: Samsung SDI Co., Ltd.

Inventor： Wonseok Cho ,  Dahyun Kim ,  Minseo Kim ,  Sangwoo Park ,  Seungyeop Oh ,  Myungheui Woo ,  Taejin Lee

IPC: H01M10/0567 ,  H01M10/0569

CPC classification number: H01M10/0567 ,  H01M10/0569 ,  H01M2300/004

Abstract: Disclosed are an electrolyte for a lithium secondary battery, and a lithium secondary battery including the same, the electrolyte including: a lithium salt; an organic solvent; and a compound represented by Formula 1.




In Formula 1, L, X, X1, X2, and X3 are as defined herein.

公开(公告)号：US20230402651A1

公开(公告)日：2023-12-14

申请号：US18013841

申请日：2022-02-28

Applicant: Samsung SDI Co., Ltd.

Inventor： Sangwoo Park ,  Hyejin Park ,  Seungyeop Oh ,  Myungheui Woo ,  Wonseok Cho

IPC: H01M10/0567 ,  H01M10/0568

CPC classification number: H01M10/0567 ,  H01M10/0568

Abstract: Provided are a novel compound, and an additive, an electrolyte and a lithium secondary battery, which include the same. The compound includes: a cyclic sulfonyl group; and a silyl group linked thereto, the silyl group containing an unsaturated hydrocarbon group, and when the compound is used as an additive in an electrolyte for a lithium secondary battery, resistance characteristics during high-temperature storage and low-temperature discharge capacity of a lithium secondary battery may be improved.

公开(公告)号：US12218308B2

公开(公告)日：2025-02-04

申请号：US17397033

申请日：2021-08-09

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Wonseok Cho ,  Dahyun Kim ,  Minseo Kim ,  Sanghyung Kim ,  Sanghoon Kim ,  Sangwoo Park ,  Hyejin Park ,  Myungheui Woo ,  Bokyung Ryu ,  Tae Jin Lee ,  Olga Tsay ,  Pavel Shatunov

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

Abstract: An additive, an electrolyte for a rechargeable lithium battery, and a rechargeable lithium battery including the same, the additive being represented by Chemical Formula 1 or Chemical Formula 2:

公开(公告)号：US20240186577A1

公开(公告)日：2024-06-06

申请号：US18481158

申请日：2023-10-04

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Sangwoo Park ,  Wonseok Cho ,  Sanghyung Kim ,  Pavel SHATUNOV ,  Olga TSAY ,  Myungheui Woo ,  Hyejin Park ,  Sanghoon Kim ,  Bokyung Ryu

IPC: H01M10/0567 ,  C07F9/6578 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569

CPC classification number: H01M10/0567 ,  C07F9/6578 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/004

Abstract: An electrolyte for a lithium secondary battery and a lithium secondary battery including the same are provided. The electrolyte may include a lithium salt, an organic solvent, and an additives (e.g., sulfolane, cyclic phosphate, cyclic phosphite) that form a cathode electrolyte interface film to protect the surface of a positive electrode. Utilization of the additives may improve cycle-life characteristics and suppress or reduce increases to resistance during high-temperature storage of the lithium secondary battery.