公开(公告)号：US20230130796A1

公开(公告)日：2023-04-27

申请号：US17974187

申请日：2022-10-26

Applicant: SK Innovation Co., Ltd. ,  SK ON CO., LTD.

Inventor： Sung Yon Oh ,  Sang Hye Shin ,  Min Woo Park

IPC: H01M10/0567 ,  H01M10/052 ,  H01M4/525 ,  H01M4/38 ,  H01M10/0568 ,  H01M4/04

Abstract: An electrolyte for a lithium secondary battery includes a lithium salt, an organic solvent, and a compound represented by Chemical Formula 1. The compound forms a solid electrolyte interphase on a surface of an anode. A lithium secondary battery including the electrolyte and having improved high-temperature storage properties can be provided.

公开(公告)号：US12218306B2

公开(公告)日：2025-02-04

申请号：US16703161

申请日：2019-12-04

Applicant: SK On Co., Ltd.

Inventor： Sung Yon Oh ,  Dong Gun Lee ,  Jin Haek Yang ,  In Haeng Cho

IPC: H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569

Abstract: Provided are an electrolyte for a secondary battery including a lithium salt, a nonaqueous organic solvent, and a cyclic fluorophosphonate compound, and a lithium secondary battery including the same.

公开(公告)号：US20240339664A1

公开(公告)日：2024-10-10

申请号：US18738191

申请日：2024-06-10

Applicant: SK On Co., Ltd.

Inventor： Sung Yon Oh ,  In Haeng Cho ,  Dong Gun Lee ,  Jin Haek Yang

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

CPC classification number: H01M10/0567 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0025

Abstract: Provided is a lithium secondary battery comprising: a cathode comprising a cathode active material, an anode comprising an anode active material, a separator interposed between the cathode and the anode, and an electrolyte for a secondary battery, wherein the cathode active material is Lix(NiaCobMnc)O2, wherein 0.90≤x≤1.10, 0.5≤a≤0.99, 0.005≤b

公开(公告)号：US11955604B2

公开(公告)日：2024-04-09

申请号：US18306244

申请日：2023-04-25

Applicant: SK ON CO., LTD.

Inventor： Ki Sung Park ,  Chanwoo Kim ,  Yu Na Shim ,  Sung Yon Oh

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0569

CPC classification number: H01M10/0567 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2300/0037 ,  H01M2300/004

Abstract: An electrolyte solution for a lithium secondary battery according to an embodiment of the present invention includes an organic solvent, a lithium salt, a compound represented by Chemical Formula 1, and a compound represented by Chemical Formula 2. A lithium secondary battery including the electrolyte solution and having improved low temperature and high temperature properties is provided.

公开(公告)号：US12191450B2

公开(公告)日：2025-01-07

申请号：US17671670

申请日：2022-02-15

Applicant: SK ON CO., LTD.

Inventor： Sung Yon Oh ,  Sang Hye Shin ,  Yu Na Shim

IPC: H01M10/0567 ,  H01M4/36 ,  H01M4/38 ,  H01M4/583 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/525

Abstract: An electrolyte solution for a secondary battery according to an exemplary embodiment includes a lithium salt, a non-aqueous organic solvent, and a silatrane-based compound represented by Chemical Formula 1. By including the electrolyte solution for a secondary battery according to an exemplary embodiment, a secondary battery can exhibit improved storage characteristics and improved capacity characteristics.

公开(公告)号：US12046715B2

公开(公告)日：2024-07-23

申请号：US17495864

申请日：2021-10-07

Applicant: SK On Co., Ltd.

Inventor： Sung Yon Oh ,  In Haeng Cho ,  Dong Gun Lee ,  Jin Haek Yang

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

CPC classification number: H01M10/0567 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0025

Abstract: Provided is a lithium secondary battery comprising: a cathode comprising a cathode active material, an anode comprising an anode active material, a separator interposed between the cathode and the anode, and an electrolyte for a secondary battery, wherein the cathode active material is Lix(NiaCobMnc)O2, wherein 0.90≤x≤1.10, 0.5≤a≤0.99, 0.005≤b

公开(公告)号：US20230098975A1

公开(公告)日：2023-03-30

申请号：US17954407

申请日：2022-09-28

Applicant: SK ON CO., LTD.

Inventor： Sung Yon Oh ,  In Haeng Cho ,  Myoung Lae Kim

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

Abstract: An electrolyte for a lithium secondary battery according to embodiments of the present invention includes an organic solvent, a lithium salt, and an additive including a succinic anhydride-based compound substituted with a trialkoxysilyl alkyl group. A lithium secondary battery including the electrolyte provides enhanced cycle property and high temperature stability.

公开(公告)号：US20230080189A1

公开(公告)日：2023-03-16

申请号：US17671670

申请日：2022-02-15

Applicant: SK ON CO., LTD.

Inventor： Sung Yon Oh ,  Sang Hye Shin ,  Yu Na Shim

IPC: H01M10/0567 ,  H01M4/36 ,  H01M4/485 ,  H01M4/38 ,  H01M4/583 ,  H01M10/0525 ,  C07F7/18

Abstract: An electrolyte solution for a secondary battery according to an exemplary embodiment includes a lithium salt, a non-aqueous organic solvent, and a silatrane-based compound represented by Chemical Formula 1. By including the electrolyte solution for a secondary battery according to an exemplary embodiment, a secondary battery can exhibit improved storage characteristics and improved capacity characteristics.

公开(公告)号：US11177507B2

公开(公告)日：2021-11-16

申请号：US16658222

申请日：2019-10-21

Applicant: SK Innovation Co., Ltd.

Inventor： Sung Yon Oh ,  In Haeng Cho ,  Dong Gun Lee ,  Jin Haek Yang

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

Abstract: Provided is an electrolyte for a secondary battery including a lithium salt, a nonaqueous organic solvent, and a cyclic phosphate compound represented by the following Chemical Formula 2: wherein R1 to R6 and R′ and R″ are independently of one another hydrogen or C1-C7 alkyl; L2 is —(CR7R8)n—; R7 and R8 are independently of each other hydrogen or C1-C7 alkyl; and n is an integer of 1 to 3. Also provided is a lithium secondary battery including the electrolyte.

公开(公告)号：US10177410B2

公开(公告)日：2019-01-08

申请号：US15104721

申请日：2014-12-19

Applicant: SK Innovation Co., Ltd.

Inventor： Jin Sung Kim ,  Cheol Woo Kim ,  Hyo Seung Park ,  Sung Yon Oh

IPC: H01M10/0567 ,  H01M10/0569 ,  H01M10/0568 ,  H01M10/052 ,  H01M4/505 ,  H01M4/525 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/38 ,  H01M4/40 ,  H01M4/583 ,  H01M10/0525 ,  H01M10/056 ,  H01M4/36

Abstract: Provided are a lithium secondary battery electrolyte and a lithium secondary battery. The lithium secondary battery electrolyte includes a lithium salt, a non-aqueous organic solvent, and a pyrrole derivative. The lithium secondary battery includes a cathode, an anode, a separator, and the lithium secondary battery electrolyte. The secondary battery electrolyte according to the present invention has advantages of excellent stability at a high temperature and high discharge capacity at a low temperature.