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.

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：US20230063361A1

公开(公告)日：2023-03-02

申请号：US17893044

申请日：2022-08-22

Applicant: SAMSUNG SDI CO., LTD.

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

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/525 ,  H01M4/36

Abstract: A rechargeable lithium battery includes a positive electrode including a positive active material; a negative electrode including a negative active material; and an electrolyte solution including a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a compound represented by Chemical Formula 1, and the positive active material includes at least one lithium composite oxide represented by Chemical Formula 3.

公开(公告)号：US20220173439A1

公开(公告)日：2022-06-02

申请号：US17538800

申请日：2021-11-30

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: H01M10/0569 ,  H01M10/0525 ,  H01M10/0565

Abstract: An electrolyte for a rechargeable lithium battery includes a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a compound represented by Chemical Formula 1 and a compound represented by Chemical Formula 2: wherein X is a fluoro group, a chloro group, a bromo group, or an iodo group, and A is a C1 to C10 alkylene group or (—C2H4—O—C2H4—)m, wherein m is an integer of 1 to 10.

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.

公开(公告)号：US20200052334A1

公开(公告)日：2020-02-13

申请号：US16655123

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 ,  H01M10/0525 ,  H01M10/0569

Abstract: The present invention relates to an electrolyte for a lithium secondary battery, and a lithium secondary battery including the electrolyte. The electrolyte includes a non-aqueous organic solvent; a lithium salt; a first additive including a compound represented by Chemical Formula 1; and a second additive including LiN(CxF2x+1SO2)(CyF2y+1SO2), wherein 0≤x≤20 and 0≤y≤20: 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：US20190020068A1

公开(公告)日：2019-01-17

申请号：US16135420

申请日：2018-09-19

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Miyoung SON ,  Kyoungsoo KIM ,  Yunhee KIM ,  Jaehong KIM ,  Hana RA ,  Suyeol RYU ,  Myunghwan JEONG ,  Sunjoo CHOI ,  Myungheui WOO ,  Seungtae LEE ,  Harim LEE ,  Siyoung CHA

IPC: H01M10/0567 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0569 ,  H01M10/0525 ,  H01M10/42 ,  H01M10/0568 ,  H01M4/62 ,  C07D497/10

Abstract: A lithium battery includes a cathode including a cathode active material an anode including an anode active material and an organic electrolytic solution between the cathode and the anode, wherein the cathode includes a carbonaceous nanostructure, and the organic electrolytic solution includes a first lithium salt, an organic solvent, and a bicyclic sulfate-based compound represented by Formula 1 below: wherein, in Formula 1, each of A1, A2, A3, and A4 is independently a covalent bond, a substituted or unsubstituted C1-C5 alkylene group, a carbonyl group, or a sulfinyl group, in which both A1 and A2 are not a covalent bond and both A3 and A4 are not a covalent bond.