公开(公告)号：US20210296702A1

公开(公告)日：2021-09-23

申请号：US17260359

申请日：2019-06-18

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Myungheui WOO ,  Pavel SHATUNOV ,  Olga TSAY ,  Hyejin PARK ,  Harim LEE ,  Jin-Hyeok LIM ,  Wonseok CHO ,  Hyunbong CHOI

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  C07F7/18

Abstract: The present disclosure relates to an electrolyte for a lithium secondary battery and a lithium secondary battery comprising same, the electrolyte comprising: a non-aqueous organic solvent; a lithium salt; and an additive, wherein the additive includes a compound represented by Chemical Formula 1 and a negative electrode film forming agent. Formula 1 is as described in the specification. For example, the electrolyte for a lithium secondary battery includes a non-aqueous organic solvent, a lithium salt, and an additive, and the additive includes a compound represented by Chemical Formula 1 and a negative electrode film forming agent. Description of Chemical Formula 1 is as described in the specification.

公开(公告)号：US20200381781A1

公开(公告)日：2020-12-03

申请号：US16887035

申请日：2020-05-29

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Myungheui WOO ,  Pavel SHATUNOV ,  Olga TSAY ,  Younghye KANG ,  Aeran KIM ,  Hyejin PARK ,  Jeongmin SHIN ,  Duckjae YOU ,  Taejin LEE ,  Harim LEE ,  Jinhyeok LIM ,  Wonseok CHO ,  Hyunbong CHOI

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/505 ,  H01M4/525 ,  H01M4/38 ,  H01M4/36 ,  H01M4/583

Abstract: An electrolyte additive for a lithium secondary battery, an electrolyte, and a lithium secondary battery, the additive including a compound represented by Formula 1 below:

公开(公告)号：US20200313238A1

公开(公告)日：2020-10-01

申请号：US16801893

申请日：2020-02-26

Applicant: Samsung SDI Co., Ltd.

Inventor： Hyejin PARK ,  Olga TSAY ,  Myungheui WOO ,  Harim LEE ,  Jinhyeok LIM ,  HyunBong CHOI

IPC: H01M10/0567 ,  C07F7/10 ,  H01M10/052 ,  H01M10/42 ,  H01M4/525

Abstract: An additive for electrolytes includes a compound represented by Formula 1. The silyl moieties at both ends of the compound may coordinate water to suppress or reduce hydrolysis of LiPF6, and may also form a SEI film capable of improving battery performance. Additional embodiments of the present disclosure provide an electrolyte including the additive; and a lithium secondary battery including the electrolyte.

公开(公告)号：US20200266490A1

公开(公告)日：2020-08-20

申请号：US16597613

申请日：2019-10-09

Applicant: Samsung SDI Co., Ltd.

Inventor： Wonseok CHO ,  Pavel SHATUNOV ,  Olga TSAY ,  Younghye KANG ,  Aeran KIM ,  Hyejin PARK ,  Jeongmin SHIN ,  Myungheui WOO ,  Duckjae YOU ,  Taejin LEE ,  Harim LEE ,  Jinhyeok LIM ,  Hyunbong CHOI

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/131

Abstract: A lithium secondary battery includes: a cathode, an anode; and an electrolyte between the cathode and the anode, wherein the cathode includes a cathode active material represented by Formula 1 below, and the electrolyte includes a lithium salt, a non-aqueous solvent, and a compound represented by Formula 2, where x, y, z, M, A, L1, a1, and R1 to R4 are defined as described in the disclosure.

公开(公告)号：US20190305374A1

公开(公告)日：2019-10-03

申请号：US16369017

申请日：2019-03-29

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Olga TSAY ,  Pavel SHATUNOV ,  Hyejin PARK ,  Myungheui WOO ,  Harim LEE ,  Jin-Hyeok LIM ,  Hyunbong CHOI

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

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: wherein, in Chemical Formula 1, R is 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 C2 to C10 alkynyl 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, and n is an integer of 1 to 3.

公开(公告)号：US20190020067A1

公开(公告)日：2019-01-17

申请号：US16135403

申请日：2018-09-19

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Miyoung SON ,  Kyoungsoo KIM ,  Yunhee KIM ,  Jaehong KIM ,  Hana RA ,  Suyeol RYU ,  Myunghwan JEONG ,  Sunjoo CHOI ,  Myungheui WOO ,  Seungtae LEE ,  Harim LEE ,  Siyoung CHA

IPC: H01M10/0567 ,  H01M4/36 ,  H01M4/48 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/42 ,  H01M10/0569 ,  H01M10/0568 ,  C07D497/10

Abstract: A lithium battery includes a cathode including a cathode active material, an anode including an anode active material, and an organic electrolytic solution between the cathode and the anode. The anode active material includes a metal-based anode active material. The organic electrolytic solution includes a first lithium salt; an organic solvent; and a bicyclic sulfate-based compound represented by Formula 1 below: wherein, in Formula 1, each of A1, A2, A3, and A4 is independently a covalent bond, a substituted or unsubstituted C1-C5 alkylene group, a carbonyl group, or a sulfinyl group, wherein both A1 and A2 are not a covalent bond and both A3 and A4 are not a covalent bond.

公开(公告)号：US20170250443A1

公开(公告)日：2017-08-31

申请号：US15442837

申请日：2017-02-27

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Pavel Alexandrovich SHATUNOV ,  Olga TSAY ,  Aehui GOH ,  Aeran KIM ,  Miyoung SON ,  Woocheol SHIN ,  Myungheui WOO ,  Seungtae LEE ,  Harim LEE ,  Hyunbong CHOI

IPC: H01M10/0567 ,  H01M10/0568 ,  H01M4/525 ,  H01M10/0569 ,  H01M4/505 ,  H01M6/16 ,  H01M10/0525

CPC classification number: H01M10/0567 ,  H01M4/505 ,  H01M4/525 ,  H01M6/164 ,  H01M6/166 ,  H01M6/168 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2220/30 ,  H01M2300/0025

Abstract: An electrolyte for a lithium battery and a lithium battery including the electrolyte, the electrolyte including a compound represented by Formula 1 below:

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: