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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
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.
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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.
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公开(公告)号：US20240120466A1
公开(公告)日：2024-04-11
申请号：US18012458
申请日：2021-10-27
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Changsu SHIN , Jongmin KIM , Jongmin WON , Youngugk KIM , Jaemyung KIM , Jaehou NAH , Dae-Hyeok LEE , Jungho LEE
CPC classification number: H01M4/366 , H01M4/133 , H01M4/134 , H01M4/136 , H01M4/386 , H01M4/5825 , H01M4/587 , H01M10/0525 , H01M2004/027
Abstract: Provided is that a negative active material for a rechargeable lithium battery, a negative electrode for a rechargeable lithium battery including the same, and a rechargeable lithium including the same, and the negative active material for a rechargeable lithium battery includes an agglomerated product of silicon-based materials comprising a silicon particle, a lithium silicate positioned on a surface of the silicon particle, a first amorphous carbon surrounded on the silicon particle and the lithium silicate; and a second amorphous carbon positioned on the agglomerated product.
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公开(公告)号：US20170346085A1
公开(公告)日：2017-11-30
申请号：US15602918
申请日：2017-05-23
Applicant: SAMSUNG SDI CO., LTD. , MK ELECTRON CO., LTD. , INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY
Inventor： Soonsung SUH , Jaehyuk KIM , Jaemyung KIM , Kibuem KIM , Jeongtae KIM , Seungwhan LEE , Yulsang LEE , Jongsoo CHO , Sunghwan HONG
IPC: H01M4/38 , B22D21/00 , B22F9/00 , B22F9/04 , C22C1/00 , C22C1/02 , C22C1/05 , C22C28/00 , H01M2/16 , B22D13/02 , H01M4/134 , H01M4/1395 , H01M4/505 , H01M10/0525 , H01M4/66 , H01M4/62 , H01M4/525 , H01M4/131 , H01M4/04 , H01M10/0568 , H01M10/0569 , H01M4/02 , H01M4/1391
CPC classification number: H01M4/38 , B22D13/02 , B22D21/007 , B22F9/008 , B22F9/04 , B22F2009/043 , B22F2302/45 , B22F2998/10 , C22C1/002 , C22C1/02 , C22C1/05 , C22C28/00 , H01M2/1653 , H01M4/0404 , H01M4/0435 , H01M4/0471 , H01M4/131 , H01M4/134 , H01M4/1391 , H01M4/1395 , H01M4/386 , H01M4/505 , H01M4/525 , H01M4/623 , H01M4/625 , H01M4/661 , H01M10/052 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M2004/027 , H01M2220/30 , H01M2300/0034 , H01M2300/004
Abstract: A negative electrode active material includes a silicon-based alloy represented by Si-M1-M2-C—B, wherein M1 and M2 are different from each other and are each independently selected from magnesium, aluminum, titanium, vanadium, chromium, iron, cobalt, nickel, copper, zinc, gallium, germanium, manganese, yttrium, zirconium, niobium, molybdenum, silver, tin, tantalum, and tungsten. In the silicon-based alloy, Si is in a range of about 50 at % to about 90 at %, M1 is in a range of about 10 at % to about 50 atom %, and M2 is in a range of 0 at % to about 10 at %, based on a total number of Si, M1, and M2 atoms. C is in a range of about 0.01 to about 30 parts by weight, and B is in a range of 0 to about 5 parts by weight, based on a total of 100 parts by weight of Si, M1, and M2.
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公开(公告)号：US20240396031A1
公开(公告)日：2024-11-28
申请号：US18797497
申请日：2024-08-07
Applicant: Samsung SDI Co., Ltd.
Inventor： Young-Min KIM , Changsu SHIN , Soonho AHN , Jaehou NAH , Jaemyung KIM
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.
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Patent Agency Ranking
公开(公告)号：US20240021792A1
公开(公告)日：2024-01-18
申请号：US18355768
申请日：2023-07-20
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Deokhyun KIM , Jaehyuk KIM , Jaemyung KIM , Soonsung SUH , Hana YOO , Yungu CHO , Heeyoung CHU
Abstract: Anode active materials for lithium secondary batteries are provided. According to embodiments of the present disclosure, an anode active material includes: i) a first composite including at least two active silicon materials having different crystal sizes and a silicon oxide (SiOx) material (wherein 0
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公开(公告)号：US20230361275A1
公开(公告)日：2023-11-09
申请号：US18012470
申请日：2021-11-15
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Dae-Hyeok LEE , Youngugk KIM , Jaemyung KIM , Jaehou NAH , Changsu SHIN , Chul YOUM , Jongmin WON , Jungho LEE , Heeyoung CHU
IPC: H01M4/36 , H01M4/38 , H01M4/587 , H01M10/052
CPC classification number: H01M4/364 , H01M4/386 , H01M4/587 , H01M10/052 , H01M2004/021
Abstract: Provides are an anode active material for a lithium secondary battery and a lithium secondary battery comprising same, wherein the anode active material for a lithium secondary battery comprises a silicon-carbon composite having a void in the central portion, the radius of the central portion corresponds to 30% to 50% of the radius of the anode active material for a lithium secondary battery, and the silicon-carbon composite includes silicon nanoparticles and amorphous carbon.
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公开(公告)号：US20220020980A1
公开(公告)日：2022-01-20
申请号：US17375365
申请日：2021-07-14
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Changsu SHIN , Heeyoung CHU , Youngugk KIM , Jaemyung KIM , Chul YOUM , Jongmin WON , Dae-Hyeok LEE , Jungho LEE
IPC: H01M4/36 , H01M4/485 , H01M4/38 , H01M10/0525 , H01M4/62
Abstract: A negative active material for a rechargeable lithium battery, a negative electrode, and a rechargeable lithium battery including the same, the negative active material including a core including silicon nanoparticles and a lithium titanium-based oxide; and an amorphous carbon layer on a surface of the core.
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公开(公告)号：US20210143439A1
公开(公告)日：2021-05-13
申请号：US17084983
申请日：2020-10-30
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Young-Min KIM , Changsu SHIN , Jongmin WON , Dae-Hyeok LEE , Jaemyung KIM , Jaehou NAH
IPC: H01M4/66 , H01M10/0525 , H01M4/38 , H01M4/583
Abstract: A negative active material for a rechargeable lithium battery and a rechargeable lithium battery including the same, the negative active material including a Si-carbon composite that includes Si nanoparticles and an amorphous carbon, wherein the negative active material has a sphericity of 0.7 or more, and a BET specific surface area of 10 m2/g or less.
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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
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.
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