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：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.