公开(公告)号：US20220344715A1

公开(公告)日：2022-10-27

申请号：US17762816

申请日：2020-09-09

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Younghye KANG ,  Dongyoung KIM ,  Soojin KIM ,  Aeran KIM ,  Suyeol RYU ,  Jeongmin SHIN ,  Junyong LEE ,  Tae Jin LEE ,  Jin-Hyeok LIM ,  Myunghwan JEONG ,  Wonseok CHO ,  Hyunbong CHOI ,  Jungmin HAN

IPC: H01M10/0567 ,  H01M10/0569

Abstract: Provided is an electrolyte solution for a lithium secondary battery, the electrolyte solution comprising a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a compound represented by Chemical Formula 1.
The contents of Chemical Formula 1 are the same as described in the specification.

公开(公告)号：US20200052336A1

公开(公告)日：2020-02-13

申请号：US16655130

申请日：2019-10-16

Applicant: Samsung SDI Co., Ltd.

Inventor： Pavel SHATUNOV ,  Olga TSAY ,  Aeran KIM ,  Hyunbong CHOI ,  Jin-Hyeok LIM ,  Jungmin HAN ,  Myunghwan JEONG ,  Soojin KIM

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M2/02 ,  H01M10/0568 ,  C07F9/06

Abstract: The present invention relates to a lithium secondary battery including an electrolyte including a non-aqueous organic solvent, a lithium salt and an additive comprising a compound represented by Chemical Formula 1; and a battery case in which the electrolyte is housed, wherein the battery case has a shape with a width (W), a height (H), and a thickness (Th), when a maximum value among the width (W), the height (H), and the thickness (Th) is a and a minimum value among the width (W), the height (H), and the thickness (Th) is b, b/a is 0.01 or more: 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：US20200052335A1

公开(公告)日：2020-02-13

申请号：US16655126

申请日：2019-10-16

Applicant: Samsung SDI Co., Ltd.

Inventor： Pavel SHATUNOV ,  Olga TSAY ,  Aeran KIM ,  Hyunbong CHOI ,  Jin-Hyeok LIM ,  Jungmin HAN ,  Myunghwan JEONG ,  Soojin KIM

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M4/587 ,  H01M10/0568 ,  C07F9/06

Abstract: The present invention relates to a lithium secondary battery including a positive electrode including a positive active material layer, the positive active material layer including a positive active material and a carbonaceous nanostructure; a negative electrode including a negative active material; and an electrolyte. The electrolyte includes a non-aqueous organic solvent, a lithium salt, and an additive including a compound represented by Chemical Formula 1, wherein the amount of the carbonaceous nanostructure is about 0.5 wt % or more and less than 4 wt % based on 100 wt % of the total amount of the positive active material layer. 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：US20190020064A1

公开(公告)日：2019-01-17

申请号：US16135342

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 ,  H01M10/0569 ,  H01M10/42 ,  H01M10/0525 ,  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 organic electrolytic solution includes a first lithium salt, a second lithium salt different from the 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：US20230140494A1

公开(公告)日：2023-05-04

申请号：US17904869

申请日：2021-01-20

Applicant: Samsung SDI Co., Ltd.

Inventor： Olga TSAY ,  Soojin KIM ,  Hyunbong CHOI ,  Younghye KANG ,  Jin-Hyeok LIM ,  Myunghwan JEONG ,  Wonseok CHO ,  Pavel SHATUNOV

IPC: H01M10/0567 ,  H01M10/0568 ,  H01M4/485 ,  H01M4/525 ,  H01M4/583 ,  H01M4/38 ,  H01M4/36

Abstract: Provided are an additive for the electrolyte of a secondary lithium battery, an electrolyte for secondary lithium battery, and a secondary lithium battery comprising same, the additive comprising a compound represented by chemical formula 1.

公开(公告)号：US20230098836A1

公开(公告)日：2023-03-30

申请号：US17893014

申请日：2022-08-22

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Seungryong OH ,  Myunghoon KIM ,  Sanghoon KIM ,  Yunhee KIM ,  Injun PARK ,  Hongryeol PARK ,  Jeongmin SHIN ,  Myunghwan JEONG ,  Hyunbong CHOI

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M4/583 ,  H01M4/505 ,  H01M4/525 ,  H01M4/485 ,  H01M10/0568 ,  H01M4/36 ,  H01M4/38

Abstract: A rechargeable lithium battery includes a positive electrode including a positive active material; a negative electrode including a negative active material; and an electrolyte solution including a non-aqueous organic solvent, a lithium salt, and an additive, wherein the negative active material includes a Si composite and the additive includes a compound represented by Chemical Formula 1. Details of Chemical Formula 1 are as described in the specification.

公开(公告)号：US20210159541A1

公开(公告)日：2021-05-27

申请号：US16633679

申请日：2018-05-10

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Myunghwan JEONG ,  Kyoungsoo KIM ,  Erang CHO ,  Manseok HAN ,  Taejeong KIM ,  Joowan PYO

IPC: H01M10/0568 ,  H01M10/0567

Abstract: Provided are an electrolyte for a lithium battery and a lithium battery including the electrolyte. The electrolyte for a lithium battery includes a non-aqueous organic solvent and a lithium salt including lithium hexafluoro phosphate (LiPF6), lithium bis(fluorosulfonyl) imide (LiFSI), and lithiumtetrafluoroborate (LiBF4), wherein, on the basis of 1 mole (mol) of LiPF6, the amount of LiFSI is in a range of about 0.01 mol to about 1.2 mol, and the amount of LiBF4 is in a range of about 0.05 mol to about 0.7 mol. By using the electrolyte for a lithium battery, service life characteristics and high-temperature characteristics of the lithium battery may be improved.

公开(公告)号：US20210020989A1

公开(公告)日：2021-01-21

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 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/525 ,  H01M4/505 ,  H01M4/38

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：US20190020065A1

公开(公告)日：2019-01-17

申请号：US16135371

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 ,  H01M4/525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/42 ,  H01M10/0525 ,  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 organic electrolytic solution includes a first lithium salt, an organic solvent, an oligomer compound, 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, in which both A1 and A2 are not a covalent bond and both A3 and A4 are not a covalent bond.

公开(公告)号：US20230015911A1

公开(公告)日：2023-01-19

申请号：US17896406

申请日：2022-08-26

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 ,  H01M10/0525 ,  H01M10/0569 ,  H01M10/0568 ,  H01M4/525 ,  H01M10/44

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