公开(公告)号：US20240405271A1

公开(公告)日：2024-12-05

申请号：US18003751

申请日：2021-12-30

Applicant: Samsung SDI Co., Ltd.

Inventor： Sanghoon Kim ,  Hongryeol Park ,  Myunghoon Kim ,  Yunhee Kim ,  Injun Park ,  Jeongmin Shin ,  Seungryong Oh ,  Myunghwan Jeong ,  Hyunbong Choi

IPC: H01M10/0567 ,  C07D327/00 ,  C07D497/10 ,  H01M4/02 ,  H01M4/525 ,  H01M10/052 ,  H01M10/42

Abstract: Provided are: an additive for an electrolyte of a lithium battery, the additive including a compound represented by Formula 1 and a compound represented by Formula 2; an organic electrolyte including the additive; and a lithium battery including the electrolyte. Accordingly, lifespan characteristics of the lithium battery may be improved and the amount of gas generation may be reduced.

公开(公告)号：US20230344002A1

公开(公告)日：2023-10-26

申请号：US18003735

申请日：2021-12-29

Applicant: Samsung SDI Co., Ltd.

Inventor： Myunghwan Jeong ,  Myunghoon Kim ,  Sanghoon Kim ,  Yunhee Kim ,  Injun Park ,  Hongryeol Park ,  Jeongmin Shin ,  Seungryong Oh ,  Hyunbong Choi

IPC: H01M10/0567 ,  H01M10/0568

CPC classification number: H01M10/0567 ,  H01M10/0568

Abstract: Provided are an electrolyte for a lithium secondary battery including a lithium salt, an organic solvent; and an additive, wherein the additive includes a first compound represented by Formula 1 and a second compound represented by Formula 2 below, and a mixing weight ratio of the first compound to the second compound is in a range of 1:9 to 9:1, and a lithium secondary battery including the same.




In Formula 1, X1, R1 to R6, and n in Formula 1 and A1 and A2 in Formula 2 are as defined in the detailed description.

公开(公告)号：US12051779B2

公开(公告)日：2024-07-30

申请号：US17538800

申请日：2021-11-30

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Hyunbong Choi ,  Myunghoon Kim ,  Sanghoon Kim ,  Yunhee Kim ,  Injun Park ,  Hongryeol Park ,  Jeongmin Shin ,  Seungryong Oh ,  Myunghwan Jeong

IPC: H01M10/0569 ,  H01M10/0525 ,  H01M10/0565

CPC classification number: H01M10/0569 ,  H01M10/0525 ,  H01M10/0565

Abstract: An electrolyte for a rechargeable lithium battery includes a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a compound represented by Chemical Formula 1 and a compound represented by Chemical Formula 2:




wherein X is a fluoro group, a chloro group, a bromo group, or an iodo group, and A is a C1 to C10 alkylene group or (—C2H4—O—C2H4—)m, wherein m is an integer of 1 to 10.