公开(公告)号：US20190267673A1

公开(公告)日：2019-08-29

申请号：US16307765

申请日：2017-06-30

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Hyejin PARK ,  Inhaeng CHO ,  Sanghoon KIM ,  Woo Cheol SHIN

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

Abstract: The present disclosure relates to a lithium secondary battery electrolyte and a lithium secondary battery comprising the lithium secondary battery electrolyte, which comprises: a non-aqueous organic solvent including a branched ester-based solvent represented by formula 1; and a lithium salt.

公开(公告)号：US20190148776A1

公开(公告)日：2019-05-16

申请号：US16300134

申请日：2017-06-08

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Inhaeng CHO ,  Hyejin PARK ,  Seonghun JEONG ,  Sanghoon KIM

IPC: H01M10/0569 ,  H01M10/0567 ,  H01M10/052 ,  H01M10/0568

Abstract: A lithium battery includes: a cathode having a mixture density of 3.9 g/cc or greater; an anode; and an electrolyte including a non-aqueous organic solvent disposed between the cathode and the anode, wherein the lithium battery has an operating voltage of 4.4 V or greater, and the non-aqueous organic solvent includes at least one first non-aqueous organic solvent selected from ethyl butyrate and methyl valerate, and the first non-aqueous organic solvent is contained in an amount of 20 to 50 volume % with based on a total volume of the non-aqueous organic solvent.

公开(公告)号：US20250038262A1

公开(公告)日：2025-01-30

申请号：US18670386

申请日：2024-05-21

Applicant: SAMSUNG SDI CO., LTD.

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

IPC: H01M10/0567 ,  H01M10/052

Abstract: A rechargeable lithium battery is provided. The rechargeable lithium battery includes a positive electrode active material; a negative electrode including a negative electrode active material; an electrolyte solution for a rechargeable lithium battery including a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a first compound represented by Chemical Formula 1 and a second compound represented by Chemical Formula 2, and the positive electrode active material includes lithium nickel composite oxide represented by Chemical Formula 3.

公开(公告)号：US20240405279A1

公开(公告)日：2024-12-05

申请号：US18673107

申请日：2024-05-23

Applicant: SAMSUNG SDI CO., LTD.

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

IPC: H01M10/0567 ,  C07D493/04 ,  H01M4/02 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0569 ,  H01M10/058 ,  H01M10/42

Abstract: An additive for use in an electrolyte for a rechargeable lithium battery, the electrolyte including the same, and a rechargeable lithium battery including the electrolyte are provided. The additive includes a compound with two acid anhydride functional groups linked through an aliphatic or aromatic ring.

公开(公告)号：US20240136566A1

公开(公告)日：2024-04-25

申请号：US18457153

申请日：2023-08-28

Applicant: SAMSUNG SDI CO., LTD.

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

IPC: H01M10/0525 ,  H01M4/1315 ,  H01M4/134 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0567 ,  H01M10/0569

CPC classification number: H01M10/0525 ,  H01M4/1315 ,  H01M4/134 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M2300/0037 ,  H01M2300/0051

Abstract: A rechargeable lithium battery includes 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, 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, the additive includes vinylene carbonate (VC), vinylethylene carbonate (VEC), or a mixture thereof, and the positive electrode active material includes a cobalt-free lithium nickel manganese-based oxide.

公开(公告)号：US20240128507A1

公开(公告)日：2024-04-18

申请号：US18012636

申请日：2022-03-30

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 ,  H01M4/133 ,  H01M4/134 ,  H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M10/052 ,  H01M10/42

CPC classification number: H01M10/0567 ,  H01M4/133 ,  H01M4/134 ,  H01M4/366 ,  H01M4/386 ,  H01M4/587 ,  H01M10/052 ,  H01M10/4235 ,  H01M2004/027

Abstract: Provided are an electrolyte for a rechargeable lithium battery including a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive is a composition including a first compound and a second compound, the first compound is a cesium salt compound, and the second compound represented by Chemical Formula 1, and a rechargeable lithium battery including the same.
Details of Chemical Formula 1 are as described in the specification.

公开(公告)号：US20240120540A1

公开(公告)日：2024-04-11

申请号：US18004048

申请日：2022-04-06

Applicant: SAMSUNG SDI CO., LTD.

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

IPC: H01M10/0567 ,  H01M4/36 ,  H01M4/38 ,  H01M4/525 ,  H01M4/583 ,  H01M10/42

CPC classification number: H01M10/0567 ,  H01M4/366 ,  H01M4/386 ,  H01M4/525 ,  H01M4/583 ,  H01M10/4235 ,  H01M10/052

Abstract: Disclosed are an electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the 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 and a second compound, the first compound is a cesium salt compound, and the second compound is represented by Chemical Formula 1.
Details of Chemical Formula 1 are as described in the specification.

公开(公告)号：US20240047671A1

公开(公告)日：2024-02-08

申请号：US18303343

申请日：2023-04-19

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Hyejin PARK ,  Yeji YANG ,  Wonseok CHO ,  Tae Jin LEE ,  Sangwoo PARK ,  Sundae KIM ,  Sanghyung KIM ,  Minseo KIM ,  Myungheui WOO ,  Sanghoon KIM ,  Hana RA ,  Bokyung RYU

IPC: H01M4/525 ,  H01M10/052 ,  H01M4/62 ,  H01M4/583 ,  H01M4/38 ,  H01M4/36

CPC classification number: H01M4/525 ,  H01M10/052 ,  H01M4/624 ,  H01M4/583 ,  H01M4/386 ,  H01M4/366 ,  H01M2004/028

Abstract: A positive electrode includes a positive electrode active material, a binder, a conductive material, and an additive represented by Chemical Formula 1 or Chemical Formula 2:




A rechargeable lithium battery includes the positive electrode a negative electrode in a negative electrode active material; and an electrolyte solution for the rechargeable lithium battery.

公开(公告)号：US20230327203A1

公开(公告)日：2023-10-12

申请号：US18044360

申请日：2021-10-07

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Sanghyung KIM ,  Sanghoon KIM ,  Myungheui WOO

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/583 ,  H01M4/38 ,  H01M4/36 ,  C07D333/48

CPC classification number: H01M10/0567 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/583 ,  H01M4/386 ,  H01M4/362 ,  C07D333/48 ,  H01M2004/027

Abstract: Provided is a lithium secondary battery, which comprises: an electrolyte comprising a non-aqueous organic solvent, a lithium salt, and an additive represented by Chemical Formula 1; a cathode comprising a cathode active material including a Si-carbon composite; and an anode comprising an anode active material.

公开(公告)号：US20230327201A1

公开(公告)日：2023-10-12

申请号：US18005336

申请日：2021-06-17

Applicant: SAMSUNG SDI CO., LTD.

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

IPC: H01M10/0567 ,  H01M10/052 ,  H01M4/525 ,  H01M4/131

CPC classification number: H01M10/0567 ,  H01M10/052 ,  H01M4/525 ,  H01M4/131

Abstract: Provided are an electrolyte for a lithium secondary battery, and a lithium secondary battery comprising 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 details of Chemical Formulas 1 and 2 are the same as those described in the specification.