公开(公告)号：US20250038249A1

公开(公告)日：2025-01-30

申请号：US18749353

申请日：2024-06-20

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Youngkyeong SHIN ,  Arum YU ,  Tae Hyon BAE ,  Harim LEE ,  Sanghyung KIM ,  Seunghyeon SON ,  Sanghoon KIM

IPC: H01M10/052 ,  H01M4/02 ,  H01M4/38 ,  H01M4/525 ,  H01M4/583 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569

Abstract: A lithium secondary battery includes: a positive electrode including a positive electrode active material; a negative electrode including a negative electrode active material; and an electrolyte, wherein the negative electrode has a composite density of at least 1.7 g/cc, and the electrolyte includes a lithium salt, a non-aqueous organic solvent, a first additive represented by Formula 1, a second additive represented by Formula 2, and a third additive represented by Formula 3:

公开(公告)号：US20250015352A1

公开(公告)日：2025-01-09

申请号：US18626150

申请日：2024-04-03

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Yeji YANG ,  Hyunbong CHOI ,  Sundae KIM ,  Sangwoo PARK ,  Dahyun KIM ,  Hongryeol PARK ,  Sanghoon KIM

IPC: H01M10/0567 ,  C07D233/60 ,  H01M4/02 ,  H01M4/36 ,  H01M4/38 ,  H01M4/525 ,  H01M4/583 ,  H01M10/052 ,  H01M10/0569 ,  H01M10/42

Abstract: A rechargeable lithium battery is provided, the rechargeable lithium battery including an electrolyte solution including a non-aqueous organic solvent, a lithium salt, and an additive; positive electrode including a positive electrode active material; and a negative electrode including a negative electrode active material, wherein the non-aqueous organic solvent includes less than about 5 wt % of ethylene carbonate based on a total weight of the non-aqueous organic solvent, the positive electrode active material includes lithium nickel manganese-based oxide, and the additive is represented by Chemical Formula 1.
Chemical Formula 1 is as defined in the specification.

公开(公告)号：US20240405277A1

公开(公告)日：2024-12-05

申请号：US18658877

申请日：2024-05-08

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Hongryeol PARK ,  Hyunbong CHOI ,  Injun PARK ,  Sangwoo PARK ,  Sohee KIM ,  Yeji YANG ,  Sanghoon KIM

IPC: H01M10/0567 ,  C07D307/60 ,  C07D307/89 ,  C07D309/36 ,  H01M4/02 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/42

Abstract: A rechargeable lithium battery includes: a positive electrode including a cobalt-free positive electrode active material with a layered structure; a negative electrode; and an electrolyte including an additive represented by Chemical Formula 1:

公开(公告)号：US20240396083A1

公开(公告)日：2024-11-28

申请号：US18494255

申请日：2023-10-25

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Yeji YANG ,  Sundae KIM ,  Hyunbong CHOI ,  Sangwoo PARK ,  Dahyun KIM ,  Hongryeol PARK ,  Sanghoon KIM

IPC: H01M10/0567 ,  C07D403/06 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0569 ,  H01M10/44

Abstract: An electrolyte additive for a rechargeable lithium battery, an electrolyte including the electrolyte additive, and a rechargeable lithium battery including the electrolyte are provided. The electrolyte additive for a rechargeable lithium battery includes an additive represented by Chemical Formula 1:

公开(公告)号：US20240322240A1

公开(公告)日：2024-09-26

申请号：US18497916

申请日：2023-10-30

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Sangwoo PARK ,  Sanghoon KIM ,  Hyunbong CHOI ,  Sundae KIM ,  Dahyun KIM ,  Hongryeol PARK ,  Yeji YANG

IPC: H01M10/0567 ,  C07D327/04 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0569 ,  H01M10/44

CPC classification number: H01M10/0567 ,  C07D327/04 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0569 ,  H01M10/44 ,  H01M2004/027

Abstract: A rechargeable lithium battery including an electrolyte including a non-aqueous organic solvent, a lithium salt, and an additive; positive electrode including a positive electrode active material; and a negative electrode including a negative electrode active material, wherein the non-aqueous organic solvent includes less than about 5 wt % of ethylene carbonate based on the total weight of the non-aqueous organic solvent, the positive electrode active material includes a lithium nickel manganese-based oxide, and the additive includes a compound represented by Chemical Formula 1.

公开(公告)号：US20240145778A1

公开(公告)日：2024-05-02

申请号：US18459275

申请日：2023-08-31

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Yeji YANG ,  Hyunbong CHOI ,  Sundae KIM ,  Sangwoo PARK ,  Dahyun KIM ,  Hongryeol PARK ,  Sanghoon KIM

IPC: H01M10/0567 ,  C07C49/14 ,  C07C49/167 ,  H01M4/36 ,  H01M4/38 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0569 ,  H01M10/42

CPC classification number: H01M10/0567 ,  C07C49/14 ,  C07C49/167 ,  H01M4/364 ,  H01M4/386 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0569 ,  H01M10/4235 ,  H01M2004/028 ,  H01M2300/0037

Abstract: Disclosed are a rechargeable lithium battery including an electrolyte solution including a non-aqueous organic solvent, a lithium salt, and an additive; a positive electrode including a positive electrode active material; and a negative electrode including a negative electrode active material, wherein the non-aqueous organic solvent includes ethylene carbonate in an amount of less than about 5 wt %, and the additive includes a compound represented by Chemical Formula 1, and the positive electrode active material is represented by Chemical Formula 2. Chemical Formula 1 and Chemical Formula 2 are the same as defined in the specification.

公开(公告)号：US20240136587A1

公开(公告)日：2024-04-25

申请号：US18459225

申请日：2023-08-31

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Hongryeol PARK ,  Hyunbong CHOI ,  Sangwoo PARK ,  Dahyun KIM ,  Sundae KIM ,  Yeji YANG ,  Sanghoon KIM

IPC: H01M10/0569 ,  H01M4/36 ,  H01M4/38 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/0568

CPC classification number: H01M10/0569 ,  H01M4/364 ,  H01M4/386 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/0568 ,  H01M2004/027

Abstract: Provided is a rechargeable lithium battery including an electrolyte solution including a non-aqueous organic solvent, a first lithium salt, and an imide-based lithium salt; a positive electrode including a positive electrode active material; and a negative electrode including a negative electrode active material, wherein the non-aqueous organic solvent contains less than about 5 wt % of ethylene carbonate based on the total weight of the non-aqueous organic solvent, and the positive electrode active material includes a cobalt-free lithium nickel manganese-based oxide.

公开(公告)号：US20240079650A1

公开(公告)日：2024-03-07

申请号：US18360702

申请日：2023-07-27

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Hongryeol PARK ,  Hyunbong CHOI ,  Sangwoo PARK ,  Dahyun KIM ,  Sundae KIM ,  Yeji YANG ,  Olga TSAY ,  Pavel SHATUNOV ,  Sanghoon KIM

IPC: H01M10/0567 ,  H01M4/38 ,  H01M10/052 ,  H01M10/0569

CPC classification number: H01M10/0567 ,  H01M4/386 ,  H01M10/052 ,  H01M10/0569 ,  H01M2004/027

Abstract: An additive for an electrolyte, an electrolyte including the additive for a rechargeable lithium battery, and a rechargeable lithium battery including the electrolyte are provided. The additive may be represented by Chemical Formula 1, where at least one selected from A and B is a group represented by Chemical Formula A.

公开(公告)号：US20230307707A1

公开(公告)日：2023-09-28

申请号：US18003110

申请日：2021-12-20

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Tae Jin LEE ,  Minseo KIM ,  Myungheui WOO ,  Sanghoon KIM ,  Dahyun KIM

IPC: H01M10/0567 ,  H01M10/0569

CPC classification number: H01M10/0567 ,  H01M10/0569 ,  H01M2300/0037

Abstract: Provided are an electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the same, the electrolyte including a nonaqueous organic solvent, a lithium salt, and an additive, wherein the additive is a composition including a first compound represented by Chemical Formula 1 and a second compound represented by Chemical Formula 2, the first compound and the second compound are included in an amount of 0.1 to 10 wt%, respectively. Details of Chemical Formulas 1 and 2 are the same as those described in the specification.

公开(公告)号：US20170125809A1

公开(公告)日：2017-05-04

申请号：US15337541

申请日：2016-10-28

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Sanghoon KIM ,  Kwanghwan CHO ,  Eunsung LEE ,  Dohyung PARK ,  ILseok KIM ,  Sol CHOI

IPC: H01M4/525 ,  C01G53/00 ,  H01M2/02 ,  H01M10/0525 ,  H01M4/131

CPC classification number: H01M4/525 ,  C01G53/00 ,  C01G53/006 ,  C01G53/42 ,  C01G53/50 ,  C01P2002/60 ,  C01P2002/70 ,  C01P2002/72 ,  C01P2002/74 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/40 ,  H01M2/022 ,  H01M4/131 ,  H01M10/0525

Abstract: A composite positive active material includes a lithium nickel cobalt aluminum composite oxide. A full width at half maximum (FWHM) of a peak of a (104) plane of the lithium nickel cobalt aluminum composite oxide is 0.15 or less and an FWHM of a peak of a (108) plane of the lithium nickel cobalt aluminum composite oxide is 0.15 or less, the peaks being obtained by X-ray diffraction analysis using a CuKα X-ray. A method of preparing the composite positive active material, and a lithium secondary battery including a positive electrode including the composite positive active material are disclosed.