公开(公告)号：US20200280062A1

公开(公告)日：2020-09-03

申请号：US16844968

申请日：2020-04-09

Applicant: Samsung SDI Co., Ltd.

Inventor： Changsu SHIN ,  Young-Min KIM ,  Soonho AHN ,  Jaehou NAH ,  Jaemyung KIM

IPC: H01M4/38 ,  H01M4/134 ,  H01M4/66 ,  H01M4/36 ,  H01M4/04 ,  H01M10/0525

Abstract: A negative active material composite includes a core and a coating layer around (surrounding) the core. The core includes amorphous carbon and silicon nanoparticles, the coating layer includes amorphous carbon, and an adjacent distance between the silicon nanoparticles is less than or equal to about 100 nm.

公开(公告)号：US20190341613A1

公开(公告)日：2019-11-07

申请号：US16462386

申请日：2017-11-09

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Soojeong LEE ,  Changsu SHIN

IPC: H01M4/587 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525

Abstract: Provided is an anode active material, including: an amorphous carbon material in which the ratio of moieties having a distance d002 of 3.77 Å or more between crystal planes is 4% to 15% based on the entire crystal plane distance distribution. When the anode active material is used, the lifespan characteristics of a lithium battery may be improved while exhibiting high capacity.

公开(公告)号：US20240356041A1

公开(公告)日：2024-10-24

申请号：US18384494

申请日：2023-10-27

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Jongmin WON ,  Jaehou NAH ,  Youngugk KIM ,  Changsu SHIN ,  Sunil PARK ,  Young-Min KIM ,  Eunji KANG ,  Doori OH ,  Yookyung KIM

IPC: H01M4/62 ,  H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M10/0525

CPC classification number: H01M4/628 ,  H01M4/366 ,  H01M4/386 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/027

Abstract: A negative active material, including a silicon-carbon composite including silicon and amorphous carbon, a metal oxide, and a metal silicate.

公开(公告)号：US20240347703A1

公开(公告)日：2024-10-17

申请号：US18383647

申请日：2023-10-25

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Sunil PARK ,  Changsu SHIN ,  Young-Min KIM ,  Eunji KANG ,  Doori OH ,  Jongmin WON ,  Yookyung KIM ,  Youngugk KIM

IPC: H01M4/36 ,  C01B32/158 ,  C01B32/159 ,  H01M4/133 ,  H01M4/134 ,  H01M4/38 ,  H01M4/587 ,  H01M10/052

CPC classification number: H01M4/366 ,  C01B32/158 ,  C01B32/159 ,  H01M4/133 ,  H01M4/134 ,  H01M4/386 ,  H01M4/587 ,  H01M10/052 ,  C01B2202/02 ,  C01B2202/06 ,  C01B2202/22 ,  C01P2006/40 ,  H01M2004/027

Abstract: A negative active material and a rechargeable lithium battery including the negative active material, the negative active material includes a silicon-carbon composite including nano-silicon and amorphous carbon; an N-doped carbon layer on the silicon-carbon composite; and a coating layer on the N-doped carbon layer, the coating layer including carbon nanotubes.

公开(公告)号：US20240332513A1

公开(公告)日：2024-10-03

申请号：US18739459

申请日：2024-06-11

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Jongmin WON ,  Young-Min KIM ,  Jaemyung KIM ,  Jaehou NAH ,  Changsu SHIN ,  Dae-Hyeok LEE

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/38 ,  H01M4/62 ,  H01M10/0525

CPC classification number: H01M4/366 ,  H01M4/386 ,  H01M4/625 ,  H01M4/628 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027

Abstract: A negative active material for a rechargeable lithium battery and a rechargeable lithium battery including the same, the negative active material including secondary particles of agglomerated primary particles, the primary particles including Si particles and a first ceramic oxide on a surface of the Si particles; and amorphous carbon, wherein the amorphous carbon surrounds a surface of the primary particles and a surface of the secondary particles.

公开(公告)号：US20240332512A1

公开(公告)日：2024-10-03

申请号：US18739412

申请日：2024-06-11

Applicant: SAMSUNG SDI CO, LTD

Inventor： Dae-Hyeok LEE ,  Young-Min KIM ,  Jaemyung KIM ,  Jaehou NAH ,  Changsu SHIN ,  Jongmin WON

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/38 ,  H01M4/587 ,  H01M10/0525

CPC classification number: H01M4/366 ,  H01M4/364 ,  H01M4/386 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027

Abstract: A negative active material for a rechargeable lithium battery and a rechargeable lithium battery, the negative active material including secondary particles of agglomerated primary particles, the primary particles including Si particles with SiC on a surface of the Si particles; and an amorphous carbon surrounding the secondary particles, wherein a peak intensity ratio (ISi(111)/ISiC(111)) of a peak intensity (ISi(111)) at a Si (111) plane relative to a peak intensity (ISiC(111)) at a SiC (111) plane is about 5 to about 50 measured by X-ray diffraction analysis using a CuKα ray.

公开(公告)号：US20230307619A1

公开(公告)日：2023-09-28

申请号：US17969035

申请日：2022-10-19

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Jongmin WON ,  Youngugk KIM ,  Young-Min KIM ,  Sunil PARK ,  Jaehou NAH ,  Eunji KANG ,  Doori OH ,  Dae-Hyeok LEE ,  Changsu SHIN

IPC: H01M4/38 ,  H01M4/583 ,  H01M4/04 ,  H01M4/58 ,  H01M4/36 ,  H01M10/052

CPC classification number: H01M4/386 ,  H01M4/583 ,  H01M4/0471 ,  H01M4/0404 ,  H01M4/0419 ,  H01M4/5825 ,  H01M4/364 ,  H01M10/052 ,  H01M2004/021

Abstract: A negative active material composite, a method of preparing the same, a negative electrode, and a rechargeable lithium battery including the same, the negative active material composite including silicon nanoparticles; amorphous carbon; and graphitized carbon.

公开(公告)号：US20210151746A1

公开(公告)日：2021-05-20

申请号：US17097659

申请日：2020-11-13

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Jongmin WON ,  Young-Min KIM ,  Jaemyung KIM ,  Jaehou NAH ,  Changsu SHIN ,  Dae-Hyeok LEE

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/62

Abstract: A negative active material for a rechargeable lithium battery and a rechargeable lithium battery including the same, the negative active material including secondary particles of agglomerated primary particles, the primary particles including Si particles and a first ceramic oxide on a surface of the Si particles; and amorphous carbon, wherein the amorphous carbon surrounds a surface of the primary particles and a surface of the secondary particles.

公开(公告)号：US20210143411A1

公开(公告)日：2021-05-13

申请号：US17085007

申请日：2020-10-30

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Dae-Hyeok LEE ,  Young-Min KIM ,  Jaemyung KIM ,  Jaehou NAH ,  Changsu SHIN ,  Jongmin WON

IPC: H01M4/36 ,  H01M4/587 ,  H01M4/38 ,  H01M10/0525

Abstract: A negative active material for a rechargeable lithium battery and a rechargeable lithium battery, the negative active material including secondary particles of agglomerated primary particles, the primary particles including Si particles with SiC on a surface of the Si particles; and an amorphous carbon surrounding the secondary particles, wherein a peak intensity ratio (ISi(111)/ISiC(111)) of a peak intensity (ISi(111))) at a Si (111) plane relative to a peak intensity (ISiC(111)) at a SiC (111) plane is about 5 to about 50 measured by X-ray diffraction analysis using a CuKα ray.

公开(公告)号：US20200280060A1

公开(公告)日：2020-09-03

申请号：US16700203

申请日：2019-12-02

Applicant: Samsung SDI Co., Ltd.

Inventor： Young-Min KIM ,  Changsu SHIN ,  Soonho AHN ,  Jaehou NAH ,  Jaemyung KIM

IPC: H01M4/38 ,  H01M4/133 ,  H01M4/134 ,  H01M4/36 ,  H01M4/587 ,  H01M10/0525

Abstract: A negative active material composite includes a core and a coating layer surrounding the core. The core includes crystalline carbon, amorphous carbon, and silicon nanoparticles, the coating layer includes amorphous carbon, and an adjacent distance between the silicon nanoparticles is less than or equal to about 100 nm.