公开(公告)号：US20240413396A1

公开(公告)日：2024-12-12

申请号：US18488835

申请日：2023-10-17

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Seunghyeon SON ,  Tae Hyon BAE ,  Sanghyung KIM ,  Yunhee KIM ,  Arum YU ,  Harim LEE

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

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 composition including a first compound and a second compound, the first compound is an imide cesium salt compound represented by Chemical Formula 1, and the second compound is a crown ether compound represented by Chemical Formula 2. Details of Chemical Formulae 1 and 2 are as described in the specification.

公开(公告)号：US20240322236A1

公开(公告)日：2024-09-26

申请号：US18487986

申请日：2023-10-16

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Tae Hyon BAE ,  Harim LEE ,  Sanghyung KIM ,  Seunghyeon SON ,  Arum YU ,  Yunhee KIM

IPC: H01M10/0567 ,  C07C49/167 ,  C07C311/48

CPC classification number: H01M10/0567 ,  C07C49/167 ,  C07C311/48 ,  H01M2300/0025

Abstract: An electrolyte for a rechargeable lithium battery, and a rechargeable lithium battery including the same. The electrolyte includes a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a first compound selected from among a perfluorinated imide salt, CsPF6, and a combination thereof, and an Ag salt.

公开(公告)号：US20240213549A1

公开(公告)日：2024-06-27

申请号：US18463186

申请日：2023-09-07

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Sanghyung KIM ,  Tae Hyon BAE ,  Harim LEE ,  Seunghyeon SON ,  Yunhee KIM ,  Arum YU

IPC: H01M10/42 ,  H01M4/36 ,  H01M4/38 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569

CPC classification number: H01M10/4235 ,  H01M4/364 ,  H01M4/366 ,  H01M4/386 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M2004/028

Abstract: A rechargeable lithium battery includes a positive electrode including a positive electrode active material including lithium cobalt-based oxide, a negative electrode including a carbon-based negative electrode active material and a silicon-based negative electrode active material, a separator between the positive electrode and the negative electrode, and an electrolyte solution. The silicon-based negative electrode active material is included in an amount of about 0.1 wt % to about 10 wt % based on the total amount of the carbon-based negative electrode active material and the silicon-based negative electrode active material. The electrolyte solution includes a non-aqueous organic solvent, a lithium salt, and an additive, and the additive includes a first compound that is a compound represented by Chemical Formula 1, CsPF6, or a combination thereof, where R1 and R2 are each independently a fluoro group or a C1 to C4 fluoroalkyl group substituted with at least one fluoro group.

公开(公告)号：US20240120542A1

公开(公告)日：2024-04-11

申请号：US18304217

申请日：2023-04-20

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Tae Hyon BAE ,  Harim LEE ,  Sanghyung KIM ,  Seunghyeon SON ,  Arum YU ,  Yunhee KIM

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0568 ,  H01M50/46

CPC classification number: H01M10/0567 ,  H01M10/0525 ,  H01M10/0568 ,  H01M50/46 ,  H01M2300/0025

Abstract: An electrolyte for a rechargeable lithium battery, and rechargeable lithium battery including the same are disclosed. The electrolyte includes a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a fluorinated ketone and an Ag salt.

公开(公告)号：US20220407054A1

公开(公告)日：2022-12-22

申请号：US17887591

申请日：2022-08-15

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Jinhyeok LIM ,  Yunhee KIM ,  Sujeong KOH ,  Seungtae LEE ,  Sunjoo CHOI ,  Siyoung CHA ,  Miyoung SON ,  Minju LEE ,  Myungheui WOO ,  Jinah SEO ,  Harim LEE ,  Erang CHO

IPC: H01M4/36 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/0568 ,  H01M4/587 ,  H01M4/38 ,  C07D327/10

Abstract: A lithium battery includes a cathode; an anode; and an organic electrolytic solution between the cathode and the anode, wherein the anode includes an anode current collector and an anode active material layer on the anode current collector, the anode active material layer includes carbonaceous and silicon-containing composite anode active materials, the anode active material layer includes first and second anode active material layers, and the first anode active material layer is between the anode current collector and the second anode active material layer, a content of silicon in the first anode active material layer is higher than the second anode active material layer, and the organic electrolytic solution includes a first lithium salt, an organic solvent, and a bicyclic sulfate-based compound represented by Formula 1 below:

公开(公告)号：US20210083295A1

公开(公告)日：2021-03-18

申请号：US16575244

申请日：2019-09-18

Applicant: Samsung SDI Co., Ltd.

Inventor： Jin-Hyeok LIM ,  Hyejin PARK ,  Myungheui WOO ,  Hyunbong CHOI ,  Harim LEE

IPC: H01M4/62 ,  H01M4/36 ,  H01M10/0568 ,  H01M4/66 ,  H01M10/0567 ,  H01M2/26 ,  H01M10/0525

Abstract: A rechargeable lithium battery includes a positive electrode, a negative electrode, and an electrolyte including a lithium salt, wherein at least one of the positive electrode and the negative electrode includes a current collector, an electrode tab extending from the current collector, an active material layer disposed on the current collector, and a passivation film formed on at least one of the current collector and the electrode tab. The passivation film includes a material represented by Chemical Formula 1: CuX(POF2)nY2Z,  Chemical Formula 1 wherein, in Chemical Formula 1, X is a C1 to C10 alkylene group, Y is represented by Chemical Formula 2, Z is an anion group of the lithium salt, and n is 1 or 2: NC—R1—CN, (wherein, R1 is a C1 to C10 alkylene group).  Chemical Formula 2

公开(公告)号：US20200343589A1

公开(公告)日：2020-10-29

申请号：US16857307

申请日：2020-04-24

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Harim LEE ,  Younghye KANG ,  Aeran KIM ,  Hyejin PARK ,  Myungheui WOO ,  Duckjae YOU ,  Taejin LEE ,  Jinhyeok LIM ,  Wonseok CHO ,  Olga TSAY ,  Hyunbong CHOI ,  Pavel SHATUNOV

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/525 ,  H01M4/505 ,  H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  C07F7/10

Abstract: An electrolyte additive for a lithium secondary battery, an electrolyte, and a lithium secondary battery, the additive comprising a compound represented by Formula 1 below:

公开(公告)号：US20200220215A1

公开(公告)日：2020-07-09

申请号：US16592667

申请日：2019-10-03

Applicant: Samsung SDI Co., Ltd.

Inventor： Hyejin PARK ,  Younghye KANG ,  Aeran KIM ,  Myungheui WOO ,  Duckjae YOU ,  Taejin LEE ,  Harim LEE ,  Jinhyeok LIM ,  Wonseok CHO ,  Hyunbong CHOI

IPC: H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0525 ,  H01M4/525 ,  C07F7/18

Abstract: An additive for a lithium secondary battery includes a compound represented by Formula 1 below, where R1 to R4 are as defined in the disclosure. An electrolyte for a lithium secondary battery includes: a lithium salt; a non-aqueous organic solvent; and the additive. A lithium secondary battery includes: a cathode; an anode; and the electrolyte.

公开(公告)号：US20190288337A1

公开(公告)日：2019-09-19

申请号：US16298169

申请日：2019-03-11

Applicant: Samsung SDI Co., Ltd.

Inventor： Hyunbong CHOI ,  Pavel SHATUNOV ,  Olga TSAY ,  Hyejin PARK ,  Myungheui WOO ,  Harim LEE ,  Jin-Hyeok LIM ,  Wonseok CHO

IPC: H01M10/0567 ,  H01M10/0525

Abstract: An electrolyte for a rechargeable lithium battery, including a non-aqueous organic solvent, a lithium salt, and an additive is disclosed. The additive includes a compound represented by Chemical Formula 1. In Chemical Formula 1, each substituent is the same as described in the detailed description.

公开(公告)号：US20190020064A1

公开(公告)日：2019-01-17

申请号：US16135342

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 ,  H01M10/0569 ,  H01M10/42 ,  H01M10/0525 ,  H01M10/0568 ,  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. The organic electrolytic solution includes a first lithium salt, a second lithium salt different from the 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, wherein both A1 and A2 are not a covalent bond and both A3 and A4 are not a covalent bond.