公开(公告)号：US20250006981A1

公开(公告)日：2025-01-02

申请号：US18646736

申请日：2024-04-25

Applicant: SAMSUNG SDI CO., LTD.

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

IPC: H01M10/0525 ,  H01M4/02 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569

Abstract: Disclosed are a 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 solution including a lithium salt, a non-aqueous organic solvent, and an additive, wherein the positive electrode active material includes a cobalt-free lithium nickel manganese-based oxide, the non-aqueous organic solvent includes less than or equal to about 5 wt % of ethylene carbonate based on a total amount of the electrolyte solution, and the additive includes a phosphorus-based compound including a trialkylsilyl group.

公开(公告)号：US20240154174A1

公开(公告)日：2024-05-09

申请号：US18464061

申请日：2023-09-08

Applicant: SAMSUNG SDI CO., LTD.

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

IPC: H01M10/0569 ,  H01M4/38 ,  H01M4/505 ,  H01M10/0567

CPC classification number: H01M10/0569 ,  H01M4/386 ,  H01M4/505 ,  H01M10/0567 ,  H01M2004/028

Abstract: A rechargeable lithium battery includes an electrolyte solution including a non- aqueous organic solvent and a lithium salt; a positive electrode including a positive electrode active material; and a negative electrode including a negative electrode active material, where 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, and the positive electrode active material includes a cobalt-free lithium nickel manganese-based oxide.

公开(公告)号：US20230327198A1

公开(公告)日：2023-10-12

申请号：US17988646

申请日：2022-11-16

Applicant: SAMSUNG SDI CO., LTD.

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

IPC: H01M10/0567 ,  H01M10/0569 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/38 ,  H01M4/587 ,  H01M4/36

CPC classification number: H01M10/0567 ,  H01M10/0569 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/386 ,  H01M4/587 ,  H01M4/366 ,  H01M2300/004 ,  H01M2300/0037

Abstract: 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 active material; and a negative electrode including a negative active material is provided. The additive includes a compound represented by Chemical Formula 1, and the positive active material includes a cobalt-free lithium nickel manganese-based oxide.

公开(公告)号：US20230318034A1

公开(公告)日：2023-10-05

申请号：US18012887

申请日：2022-02-16

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Dahyun KIM ,  Minseo KIM ,  Sanghyung KIM ,  Sanghoon KIM ,  Hyejin PARK ,  Myungheui WOO ,  Bokyung RYU ,  Tae Jin LEE

IPC: H01M10/0567

CPC classification number: H01M10/0567

Abstract: Provided are an electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including same, the electrolyte including a non-aqueous 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.
Details of Chemical Formulas 1 and 2 are the same as those described in the specification.

公开(公告)号：US20250158126A1

公开(公告)日：2025-05-15

申请号：US18941643

申请日：2024-11-08

Applicant: SAMSUNG SDI CO., LTD.

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

IPC: H01M10/0567 ,  H01M10/0525

Abstract: The electrolyte solution for a rechargeable lithium battery according to some example embodiments includes a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a first compound and a second compound which is or includes a nitrile-based compound containing three or more cyano groups.

公开(公告)号：US20250025905A1

公开(公告)日：2025-01-23

申请号：US18629856

申请日：2024-04-08

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Bumrae KIM ,  Dahyun KIM ,  Byonggon LEE

IPC: B05C5/02 ,  H01M4/04

Abstract: A slot die coating device includes: a roll configured to continuously supply an electrode substrate; and a slot die configured to form an active material coating portion on the electrode substrate. The roll and the slot die form a first gap between each other at a center in a width direction of the electrode substrate and form a second gap that is greater than the first gap.

公开(公告)号：US20240145792A1

公开(公告)日：2024-05-02

申请号：US18459306

申请日：2023-08-31

Applicant: SAMSUNG SDI CO., LTD.

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

IPC: H01M10/42 ,  H01M4/38 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569

CPC classification number: H01M10/4235 ,  H01M4/386 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M2300/0037

Abstract: Provided is 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 less than about 5 wt % of ethylene carbonate based on the total weight of the non-aqueous organic solvent, the additive includes one or more lithium compound selected from lithium tetrafluoro borate (LiBF4), lithium difluoro(oxalato)borate (LiDFOB), lithium difluorophosphate (LiPO2F2), and lithium bisoxalato borate (LiB(C2O4)2: LiBOB), and the positive electrode active material includes a cobalt-free lithium nickel manganese-based oxide.

公开(公告)号：US20240047746A1

公开(公告)日：2024-02-08

申请号：US18002853

申请日：2022-04-06

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Sanghyung KIM ,  Tae Jin LEE ,  Minseo KIM ,  Myungheui WOO ,  Hyejin PARK ,  Sanghoon KIM ,  Dahyun KIM ,  Bokyung RYU

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M4/587 ,  H01M4/38 ,  H01M4/133 ,  H01M4/134

CPC classification number: H01M10/0567 ,  H01M10/0525 ,  H01M4/587 ,  H01M4/386 ,  H01M4/133 ,  H01M4/134 ,  H01M2004/021

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

公开(公告)号：US20230361347A1

公开(公告)日：2023-11-09

申请号：US18044971

申请日：2021-11-17

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Tae Jin LEE ,  Dahyun KIM ,  Minseo KIM ,  Sanghoon KIM ,  Taehoon KIM ,  Bongjin MOON ,  Myungheui WOO ,  Wonseok CHO ,  Sanghyung KIM ,  Hyejin PARK ,  Bokyung RYU

IPC: H01M10/0567 ,  H01M4/525 ,  H01M4/485 ,  H01M10/0568 ,  H01M4/505 ,  H01M10/052

CPC classification number: H01M10/0567 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0568 ,  H01M2004/028

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

公开(公告)号：US20250132388A1

公开(公告)日：2025-04-24

申请号：US18689829

申请日：2022-09-06

Applicant: Samsung SDI Co., Ltd.

Inventor： Taejin Lee ,  Dahyun KIM ,  Minseo Kim ,  Myungheui Woo ,  Sanghoon Kim ,  Sanghyung Kim ,  Hyejin Park ,  Bokyung Ryu

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

Abstract: An electrolyte for a lithium secondary battery and a lithium secondary battery are disclosed. The electrolyte for a lithium secondary battery includes: a lithium salt; an organic solvent; and an additive, wherein the additive includes a compound represented by Formula 1.