公开(公告)号：US12015120B2

公开(公告)日：2024-06-18

申请号：US16927116

申请日：2020-07-13

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Hyunbong Choi ,  Younghye Kang ,  Dongyoung Kim ,  Soojin Kim ,  Aeran Kim ,  Suyeol Ryu ,  Jeongmin Shin ,  Junyong Lee ,  Tae Jin Lee ,  Jin-Hyeok Lim ,  Myunghwan Jeong ,  Wonseok Cho ,  Pavel Shatunov ,  Jungmin Han

IPC: H01M10/0567 ,  H01M4/02 ,  H01M4/38 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0569

CPC classification number: H01M10/0567 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2004/027 ,  H01M2004/028 ,  H01M4/382 ,  H01M2300/0025 ,  H01M2300/0028 ,  Y02E60/10

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

公开(公告)号：US11069924B2

公开(公告)日：2021-07-20

申请号：US16363559

申请日：2019-03-25

Applicant: Samsung SDI Co., Ltd.

Inventor： Tae Jin Lee

IPC: H01M10/42 ,  H02J7/00 ,  H03K5/24 ,  G01R19/165 ,  H01M10/44

Abstract: A battery pack includes a battery and a battery management system to control and manage charging and discharging of the battery. The battery management system includes an external terminal connected to a charger or an external electronic device, a cell terminal connected to the battery, a charge field effect transistor (FET) and a discharge FET connected between the external terminal and the cell terminal, a voltage sensor to measure a battery voltage of the battery, a comparator comparing the battery voltage with a reference voltage to determine whether the battery pack is in an overdischarged state, and a controller controlling the charge FET to be cut off to prevent a charge operation of the battery, if the comparator determines that the battery pack is in an overdischarged state.

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：US11600861B2

公开(公告)日：2023-03-07

申请号：US16904773

申请日：2020-06-18

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Wonseok Cho ,  Younghye Kang ,  Dongyoung Kim ,  Soojin Kim ,  Aeran Kim ,  Suyeol Ryu ,  Jeongmin Shin ,  Junyong Lee ,  Tae Jin Lee ,  Jin-Hyeok Lim ,  Myunghwan Jeong ,  Hyunbong Choi ,  Jungmin Han

IPC: H01M6/16 ,  H01M10/0567 ,  H01M10/0525 ,  H01M10/0569 ,  H01M10/0568 ,  H01M4/525 ,  H01M10/44 ,  H01M4/02

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

公开(公告)号：US11367900B2

公开(公告)日：2022-06-21

申请号：US17023272

申请日：2020-09-16

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Jin-Hyeok Lim ,  Younghye Kang ,  Soojin Kim ,  Aeran Kim ,  Suyeol Ryu ,  Injun Park ,  Jinah Seo ,  Jeongmin Shin ,  Junyong Lee ,  Tae Jin Lee ,  Myunghwan Jeong ,  Hyejeong Jeong ,  Wonseok Cho ,  Olga Tsay ,  Hyunbong Choi ,  Pavel Shatunov

IPC: H01M6/04 ,  H01M10/0567 ,  H01M4/36 ,  H01M4/587 ,  H01M4/38 ,  H01M4/525 ,  H01M10/0525 ,  C01G51/00 ,  C01G53/00 ,  C07F9/06 ,  H01M10/0568

Abstract: The present invention relates to a lithium secondary battery. The lithium secondary battery includes a positive electrode including a positive active material; a negative electrode including a negative active material; and an electrolyte including a non-aqueous organic solvent, a lithium salt, and an additive including a compound represented by Chemical Formula 1. The negative active material includes Si at about 0.1 wt % to about 32 wt % in amount based on a total weight of the negative active material. wherein, in Chemical Formula 1, A is a substituted or unsubstituted aliphatic chain or (—C2H4—O—C2H4-)n, and n is an integer from 1 to 10.

公开(公告)号：US11908999B2

公开(公告)日：2024-02-20

申请号：US17081062

申请日：2020-10-27

Applicant: SAMSUNG SDI CO., LTD. ,  POSTECH Research and Business Development Foundation

Inventor： Myunghwan Jeong ,  Younghye Kang ,  Haneol Kang ,  Dongyoung Kim ,  Soojin Kim ,  Aeran Kim ,  Hoon Kim ,  Suyeol Ryu ,  Moon Jeong Park ,  Jeongmin Shin ,  Junyong Lee ,  Tae Jin Lee ,  Jin-Hyeok Lim ,  Wonseok Cho ,  Hyunbong Choi ,  Jungmin Han

IPC: H01M4/00 ,  H01M10/0567 ,  C07F9/38 ,  H01M4/36 ,  H01M4/38 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525

CPC classification number: H01M10/0567 ,  C07F9/3826 ,  C07F9/3886 ,  H01M4/364 ,  H01M4/366 ,  H01M4/386 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M2300/0025

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






in Chemical Formula 1, R1 is a cyano group, a substituted or unsubstituted C2 to C10 alkenyl group, or a substituted or unsubstituted C2 to C10 alkynyl group.

公开(公告)号：US11728514B2

公开(公告)日：2023-08-15

申请号：US17011203

申请日：2020-09-03

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Wonseok Cho ,  Younghye Kang ,  Dongyoung Kim ,  Soojin Kim ,  Aeran Kim ,  Suyeol Ryu ,  Jeongmin Shin ,  Junyong Lee ,  Tae Jin Lee ,  Jin-Hyeok Lim ,  Myunghwan Jeong ,  Hyunbong Choi ,  Jungmin Han

IPC: H01M10/0567 ,  H01M4/131 ,  H01M4/134 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/02

CPC classification number: H01M10/0567 ,  H01M4/131 ,  H01M4/134 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2004/027 ,  H01M2004/028

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






wherein, in Chemical Formula 1, R1 to R6 are each independently a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C1 to C10 alkoxy group, a substituted or unsubstituted C2 to C10 alkenyl group, a substituted or unsubstituted C3 to C10 cycloalkyl group, a substituted or unsubstituted C3 to C10 cycloalkenyl group, or a substituted or unsubstituted C6 to C20 aryl group.