公开(公告)号：US20220407058A1

公开(公告)日：2022-12-22

申请号：US17887597

申请日：2022-08-15

Applicant: SAMSUNG SDI CO., LTD.

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

IPC: H01M4/48 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/36 ,  H01M4/583

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 anode active material includes a carbonaceous anode active material and a metallic anode active material, in an XRD spectrum of the anode, a peak intensity ratio (la/lb) of a peak intensity (la) of a carbonaceous anode active material oriented in a direction non-parallel to a surface of the anode to all peak intensities (lb) of the carbonaceous anode active material oriented in all directions is about 0.15 or more, 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：US20220407113A1

公开(公告)日：2022-12-22

申请号：US17887621

申请日：2022-08-15

Applicant: SAMSUNG SDI CO., LTD.

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

IPC: H01M10/0567 ,  H01M10/0568 ,  H01M10/052 ,  H01M4/525 ,  H01M4/505 ,  C07D327/10 ,  C07F9/6571 ,  C07F5/04 ,  C01G53/00

Abstract: An organic electrolytic solution includes a first lithium salt; an organic solvent; a bicyclic sulfate-based compound represented by Formula 1 below; and a monocyclic phosphate-based compound represented by Formula K1 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, and in Formula K1, each of A5 and A6 is independently a substituted or unsubstituted C1-C5 alkylene group.

公开(公告)号：US20220407055A1

公开(公告)日：2022-12-22

申请号：US17887613

申请日：2022-08-15

Applicant: SAMSUNG SDI CO., LTD.

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

IPC: H01M4/36 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/0568 ,  H01M4/525 ,  H01M4/505 ,  C07D327/10

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 active material includes a first lithium transition metal oxide and a second lithium transition metal oxide, the first lithium transition metal oxide and the second lithium transition metal oxide have different particle diameters, the second lithium transition metal oxide includes primary particles having a particle diameter of about 1 μm or more, 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：US20200220217A1

公开(公告)日：2020-07-09

申请号：US16682804

申请日：2019-11-13

Applicant: Samsung SDI Co., Ltd.

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

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M4/525 ,  C07F7/10

Abstract: Disclosed herein is an additive for a lithium secondary battery, the additive including a compound represented by Formula 1. An electrolyte for a lithium secondary battery includes: a lithium salt; a non-aqueous organic solvent; and the additive represented by Formula 1. A lithium secondary battery includes: a cathode; an anode; and the electrolyte including the additive represented by Formula 1.

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：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：US20220407114A1

公开(公告)日：2022-12-22

申请号：US17887636

申请日：2022-08-15

Applicant: SAMSUNG SDI CO., LTD.

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

IPC: H01M10/0567 ,  H01M10/0568 ,  H01M10/052 ,  H01M4/525 ,  H01M4/505 ,  C07D327/10

Abstract: An organic electrolytic solution includes a first lithium salt; an organic solvent; a bicyclic sulfate-based compound represented by Formula 1 below; and a nitrile group-containing compound, wherein the nitrile group-containing compound includes a plurality of nitrile groups: 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.

公开(公告)号：US20200381781A1

公开(公告)日：2020-12-03

申请号：US16887035

申请日：2020-05-29

Applicant: SAMSUNG SDI CO., LTD.

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

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/505 ,  H01M4/525 ,  H01M4/38 ,  H01M4/36 ,  H01M4/583

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

公开(公告)号：US20200313238A1

公开(公告)日：2020-10-01

申请号：US16801893

申请日：2020-02-26

Applicant: Samsung SDI Co., Ltd.

Inventor： Hyejin PARK ,  Olga TSAY ,  Myungheui WOO ,  Harim LEE ,  Jinhyeok LIM ,  HyunBong CHOI

IPC: H01M10/0567 ,  C07F7/10 ,  H01M10/052 ,  H01M10/42 ,  H01M4/525

Abstract: An additive for electrolytes includes a compound represented by Formula 1. The silyl moieties at both ends of the compound may coordinate water to suppress or reduce hydrolysis of LiPF6, and may also form a SEI film capable of improving battery performance. Additional embodiments of the present disclosure provide an electrolyte including the additive; and a lithium secondary battery including the electrolyte.