公开(公告)号：US20250149566A1

公开(公告)日：2025-05-08

申请号：US19014194

申请日：2025-01-08

Applicant: Samsung SDI Co., Ltd.

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

IPC: H01M4/38 ,  H01M4/02 ,  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.

公开(公告)号：US20240372085A1

公开(公告)日：2024-11-07

申请号：US18777265

申请日：2024-07-18

Applicant: SAMSUNG SDI CO., LTD.

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

IPC: H01M4/38 ,  H01M4/02 ,  H01M4/04 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/66 ,  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：US20240222604A1

公开(公告)日：2024-07-04

申请号：US18385008

申请日：2023-10-30

Applicant: SAMSUNG SDI CO., LTD.

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

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

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

Abstract: A negative active material for a rechargeable lithium battery and a rechargeable lithium battery including the negative active material, the negative active material includes a silicon-carbon composite including secondary particles in which nano silicon primary particles are agglomerated, and an amorphous carbon coating layer on a surface of the secondary particles; and sodium silicate.

公开(公告)号：US20240170650A1

公开(公告)日：2024-05-23

申请号：US18383684

申请日：2023-10-25

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Sunil PARK ,  Young-Min KIM ,  Youngugk KIM ,  Changsu SHIN ,  Doori OH ,  Jongmin WON ,  Dae-Hyeok LEE ,  Sungwon JUNG

IPC: H01M4/36 ,  H01M4/583 ,  H01M10/052

CPC classification number: H01M4/366 ,  H01M4/583 ,  H01M10/052 ,  H01M2004/021

Abstract: A negative active material for a rechargeable lithium battery, having a silicon-carbon composite in which crystalline carbon, silicon particles, and amorphous carbon are agglomerated, and single-walled carbon nanotubes are coated on the silicon-carbon composite, to ameliorate the negative effects caused by the expansion and contraction of the volume of a silicon-based negative active material during charging and discharging.

公开(公告)号：US20230135650A1

公开(公告)日：2023-05-04

申请号：US17944630

申请日：2022-09-14

Applicant: SAMSUNG SDI CO., LTD.

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

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/133 ,  H01M4/134 ,  H01M4/38 ,  H01M4/48 ,  H01M4/587 ,  H01M4/04

Abstract: A negative active material composite, a method of preparing the same, and a negative electrode and a rechargeable lithium battery including the same, the negative active material composite including compound particles represented by SiOx, in which 0

公开(公告)号：US20210151745A1

公开(公告)日：2021-05-20

申请号：US17091181

申请日：2020-11-06

Applicant: SAMSUNG SDI CO., LTD. ,  Research & Business Foundation SUNGKYUNKWAN UNIVERSITY

Inventor： Changsu SHIN ,  Jaehou NAH ,  Myeong Gyun NAM ,  Pil Jin YOO ,  Gwan Hyun CHOI

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

Abstract: A negative active material for a rechargeable lithium battery and a rechargeable lithium battery, the negative active material including a composite including silicon particles, metal particles, and a first amorphous carbon; and a second amorphous carbon surrounding on the composite.

公开(公告)号：US20190312264A1

公开(公告)日：2019-10-10

申请号：US16374923

申请日：2019-04-04

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Changsu SHIN ,  Yongseok KIM ,  Jaehou NAH

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

Abstract: A negative active material and a rechargeable lithium battery, the negative active material including a silicon-carbon composite, the silicon-carbon composite including crystalline carbon; amorphous carbon; and silicon nanoparticles having a needle shape, a flake shape, a sheet shape, or a combination thereof, wherein the silicon nanoparticles have a D50 particle diameter of 5 nm to 150 nm and an aspect ratio of 4 to 10.

公开(公告)号：US20240383754A1

公开(公告)日：2024-11-21

申请号：US18756160

申请日：2024-06-27

Applicant: SAMSUNG SDI CO., LTD.

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

IPC: C01B32/05 ,  H01M10/052

Abstract: A negative active material and a rechargeable lithium battery including the same. The negative active material includes an inorganic supporter in which pores are formed; a silicon layer coated on the inorganic supporter, and a carbon-based material positioned on the pores of the inorganic supporter and a surface of the inorganic supporter.

公开(公告)号：US20240363860A1

公开(公告)日：2024-10-31

申请号：US18757717

申请日：2024-06-28

Applicant: Samsung SDI Co., Ltd.

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

IPC: H01M4/583 ,  H01M4/02 ,  H01M4/04 ,  H01M4/36 ,  H01M4/38 ,  H01M10/052 ,  H01M10/44

CPC classification number: H01M4/583 ,  H01M4/0404 ,  H01M4/366 ,  H01M4/386 ,  H01M10/052 ,  H01M10/44 ,  H01M2004/021 ,  H01M2004/027

Abstract: A negative active material, including an inorganic supporter having pores which are filled with silicon, additional silicon located on a surface of the inorganic supporter, and a carbon coating layer on the surface of the inorganic supporter and a surface of the additional silicon located on the surface of the inorganic supporter.

公开(公告)号：US20240243261A1

公开(公告)日：2024-07-18

申请号：US18386097

申请日：2023-11-01

Applicant: SAMSUNG SDI CO., LTD.

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

IPC: H01M4/36 ,  C01B32/159 ,  C01B33/02 ,  H01M4/133 ,  H01M4/134 ,  H01M4/38 ,  H01M4/587

CPC classification number: H01M4/366 ,  C01B32/159 ,  C01B33/02 ,  H01M4/133 ,  H01M4/134 ,  H01M4/386 ,  H01M4/587 ,  H01M2004/021

Abstract: A negative active material for a rechargeable lithium battery, the negative active material including a core having silicon and a first carbon nanotube, an amorphous carbon coating layer surrounding the core, and a second carbon nanotube adhered to the amorphous carbon coating layer.