公开(公告)号：US20240372093A1

公开(公告)日：2024-11-07

申请号：US18538987

申请日：2023-12-13

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Soonsung SUH ,  MyungSeop KIM ,  Youngsan KO ,  Minju LEE ,  Boram LEE ,  Kyuhwan CHOI

IPC: H01M4/58 ,  H01M4/62 ,  H01M10/052

Abstract: A positive electrode includes a positive electrode active material layer including a positive electrode active material of Chemical Formula 1 and carbon nanotubes with an average length of about 30 μm to about 80 μm; and a current collector supporting the positive electrode active material layer, wherein the positive electrode has an active mass density of greater than or equal to about 2.5 g/cc. LiaFe1-xMxPO4.  Chemical Formula 1 In Chemical Formula 1, 0.90≤a≤1.8, 0≤x≤0.7, and M is Mg, Co, Ni, Mn, or a combination thereof.

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：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：US20190198923A1

公开(公告)日：2019-06-27

申请号：US16327050

申请日：2017-08-03

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Heeeun YOO ,  Duckhyun KIM ,  Taeri KWON ,  Taehyun BAE ,  Woocheol SHIN ,  Minju LEE ,  Siyoung CHA

IPC: H01M10/0565 ,  H01M4/131 ,  H01M10/0525 ,  H01M4/48 ,  H01M4/40 ,  H01M4/36

CPC classification number: H01M10/0565 ,  H01M4/131 ,  H01M4/364 ,  H01M4/405 ,  H01M4/483 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/056 ,  H01M10/0562 ,  H01M2300/0022

Abstract: Provided are an electrolyte for a lithium metal battery and a lithium metal battery including the electrolyte, wherein the electrolyte includes a composite including a lithium ion-conductive compound which is a non-carbonate-based substance having resistance to reduction of lithium metal, a polymerization product of a crosslinkable polymer, and a lithium salt, wherein the lithium ion-conductive compound is glycol ether.

公开(公告)号：US20160141717A1

公开(公告)日：2016-05-19

申请号：US14805934

申请日：2015-07-22

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Minju LEE ,  Woocheol SHIN ,  Seungtae LEE ,  Vladimir EGOROV ,  Soojin KIM

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

CPC classification number: H01M10/0567 ,  H01M10/052 ,  H01M10/0564 ,  H01M10/0569 ,  H01M2300/0037 ,  Y02T10/7011

Abstract: An electrolyte for a lithium battery includes an organic solvent; and a compound represented by Formula 1: wherein, in Formula 1, X1 to X4, A1 to A4, and R1 to R4 are further defined in the specification.

Abstract translation: 用于锂电池的电解质包括有机溶剂; 和由式1表示的化合物：其中，在式1中，在说明书中进一步限定X1至X4，A1至A4和R1至R4。

公开(公告)号：US20250038200A1

公开(公告)日：2025-01-30

申请号：US18537222

申请日：2023-12-12

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Erang CHO ,  Jin-Hyeok LIM ,  Jinah SEO ,  Sujeong KOH ,  Yunhee KIM ,  Minju LEE

IPC: H01M4/58 ,  H01M4/525 ,  H01M10/0587 ,  H01M10/42

Abstract: A rechargeable lithium battery and the rechargeable lithium battery including a positive electrode is provided. The positive electrode includes a positive active material and sulfur, a negative electrode comprising a negative active material and sulfur, and a non-aqueous electrolyte. An amount of sulfur in the positive electrode is at least twice an amount of sulfur in the negative electrode.

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：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：US20180090788A1

公开(公告)日：2018-03-29

申请号：US15679260

申请日：2017-08-17

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Minju LEE ,  Woocheol SHIN ,  Seungtae LEE ,  Vladimir EGOROV ,  Soojin KIM

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

CPC classification number: H01M10/0567 ,  H01M10/052 ,  H01M10/0564 ,  H01M10/0569 ,  H01M2300/0037 ,  Y02T10/7011

Abstract: An electrolyte for a lithium battery includes an organic solvent; and a compound represented by Formula 1: wherein, in Formula 1, X1 to X4, A1 to A4, and R1 to R4 are further defined in the specification.