公开(公告)号：US20240405274A1

公开(公告)日：2024-12-05

申请号：US18488872

申请日：2023-10-17

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Seungryong OH ,  Myunghoon KIM ,  Aeran KIM ,  Yunhee KIM ,  Injun PARK ,  Jeongmin SHIN

IPC: H01M10/0567 ,  H01M4/36 ,  H01M4/38 ,  H01M4/583 ,  H01M10/0569

Abstract: A rechargeable lithium battery including a positive electrode, a negative electrode, and an electrolyte is provided. The electrolyte includes a non-aqueous organic solvent, a lithium salt, a first additive, and a second additive. The negative electrode includes a negative electrode active material including a Si—C composite mixed with a separate carbon-based compound.

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：US20190252724A1

公开(公告)日：2019-08-15

申请号：US16335240

申请日：2017-09-11

Applicant: Samsung SDI Co., Ltd.

Inventor： Pavel SHATUNOV ,  Olga TSAY ,  Aeran KIM ,  Woo Cheol SHIN ,  Hyunbong CHOI

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

CPC classification number: H01M10/0567 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/028

Abstract: The present invention relates to an electrolyte for a lithium secondary battery, and a lithium secondary battery comprising the electrolyte, the electrolyte comprising a non-aqueous organic solvent; lithium salt; and an additive comprising a compound which contains a difluorophosphite (—OPF2) group which is expressed by a particular chemical formula.

公开(公告)号：US20240405273A1

公开(公告)日：2024-12-05

申请号：US18487948

申请日：2023-10-16

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Aeran KIM ,  Myunghoon KIM ,  Injun PARK ,  Seungryong OH ,  Jeongmin SHIN ,  Yunhee KIM

IPC: H01M10/0567 ,  H01M4/38 ,  H01M4/525 ,  H01M4/583 ,  H01M10/04 ,  H01M10/0568 ,  H01M10/0569

Abstract: A rechargeable lithium battery including a cylindrical can; an electrode assembly in the cylindrical can; and an electrolyte in the electrode assembly is provided. An electrolyte additive and a lithium imide salt are included in the electrolyte and the volume of a cylindrical can is well-defined.

公开(公告)号：US20240332616A1

公开(公告)日：2024-10-03

申请号：US18488882

申请日：2023-10-17

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Injun PARK ,  Myunghoon KIM ,  Jeongmin SHIN ,  Seungryong OH ,  Aeran KIM ,  Yunhee KIM

IPC: H01M10/0567 ,  H01M4/133 ,  H01M4/134 ,  H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M10/052

CPC classification number: H01M10/0567 ,  H01M4/133 ,  H01M4/134 ,  H01M4/364 ,  H01M4/386 ,  H01M4/587 ,  H01M10/052 ,  H01M2004/027

Abstract: A rechargeable lithium battery including an electrolyte, a positive electrode including a positive electrode active material, and a negative electrode including a negative electrode active material is provided. The electrolyte includes a combination of additives and lithium salts and a length and amount of a negative electrode active material.

公开(公告)号：US20210083328A1

公开(公告)日：2021-03-18

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 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/131 ,  H01M4/134 ,  H01M4/525 ,  H01M4/505

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.

公开(公告)号：US20200052337A1

公开(公告)日：2020-02-13

申请号：US16655136

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 ,  H01M10/054

Abstract: The present invention relates to an electrolyte for a lithium secondary battery including an electrolyte, the electrolyte including a non-aqueous organic solvent, a lithium salt, and an additive including a compound represented by Chemical Formula 1; and wherein an amount of the additive is 0.1 wt % to 10 wt % based on the total the electrolyte, and the lithium secondary battery has an energy density of 200 Wh/L 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：US20240405276A1

公开(公告)日：2024-12-05

申请号：US18492677

申请日：2023-10-23

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Aeran KIM ,  Myunghoon KIM ,  Injun PARK ,  Seungryong OH ,  Jeongmin SHIN ,  Yunhee KIM

IPC: H01M10/0567 ,  H01M4/525 ,  H01M10/04 ,  H01M10/0569

Abstract: Some example embodiments of the present disclosure provide a rechargeable lithium battery including a cylindrical can; an electrode assembly accommodated in the cylindrical can; and an electrolyte impregnated in the electrode assembly, wherein a volume of the cylindrical can is controlled and a type (or kind) and a content of the electrolyte additive are limited. The volume of the cylindrical can and the type (or kind) and content of the electrolyte additive are described in detail in this specification.

公开(公告)号：US20230170526A1

公开(公告)日：2023-06-01

申请号：US17905927

申请日：2021-01-20

Applicant: SAMSUNG SDI CO., LTD.

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

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

CPC classification number: H01M10/0567 ,  H01M10/0525 ,  H01M10/0568 ,  H01M4/525 ,  H01M4/505 ,  H01M4/485 ,  H01M2004/028

Abstract: Provided are an additive represented by Chemical Formula 1, an electrolyte for a lithium secondary battery including same, and a lithium secondary battery. The details of Chemical Formula 1 are as described in the specification.

公开(公告)号：US20210005932A1

公开(公告)日：2021-01-07

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

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.