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公开(公告)号：US20240356041A1
公开(公告)日：2024-10-24
申请号：US18384494
申请日：2023-10-27
发明人： Jongmin WON , Jaehou NAH , Youngugk KIM , Changsu SHIN , Sunil PARK , Young-Min KIM , Eunji KANG , Doori OH , Yookyung KIM
IPC分类号： H01M4/62 , H01M4/36 , H01M4/38 , H01M4/587 , H01M10/0525
CPC分类号： H01M4/628 , H01M4/366 , H01M4/386 , H01M4/587 , H01M10/0525 , H01M2004/027
摘要： A negative active material, including a silicon-carbon composite including silicon and amorphous carbon, a metal oxide, and a metal silicate.
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22.发明公开公开(公告)号：US20240332513A1
公开(公告)日：2024-10-03
申请号：US18739459
申请日：2024-06-11
发明人： Jongmin WON , Young-Min KIM , Jaemyung KIM , Jaehou NAH , Changsu SHIN , Dae-Hyeok LEE
IPC分类号： H01M4/36 , H01M4/02 , H01M4/38 , H01M4/62 , H01M10/0525
CPC分类号： H01M4/366 , H01M4/386 , H01M4/625 , H01M4/628 , H01M10/0525 , H01M2004/021 , H01M2004/027
摘要： 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.
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23.发明公开公开(公告)号：US20240332512A1
公开(公告)日：2024-10-03
申请号：US18739412
申请日：2024-06-11
申请人： SAMSUNG SDI CO, LTD
发明人： Dae-Hyeok LEE , Young-Min KIM , Jaemyung KIM , Jaehou NAH , Changsu SHIN , Jongmin WON
IPC分类号： H01M4/36 , H01M4/02 , H01M4/38 , H01M4/587 , H01M10/0525
CPC分类号： H01M4/366 , H01M4/364 , H01M4/386 , H01M4/587 , H01M10/0525 , H01M2004/021 , H01M2004/027
摘要： 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.
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公开(公告)号：US20230307619A1
公开(公告)日：2023-09-28
申请号：US17969035
申请日：2022-10-19
发明人： Jongmin WON , Youngugk KIM , Young-Min KIM , Sunil PARK , Jaehou NAH , Eunji KANG , Doori OH , Dae-Hyeok LEE , Changsu SHIN
CPC分类号： H01M4/386 , H01M4/583 , H01M4/0471 , H01M4/0404 , H01M4/0419 , H01M4/5825 , H01M4/364 , H01M10/052 , H01M2004/021
摘要： 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.
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25.发明公开公开(公告)号：US20230307607A1
公开(公告)日：2023-09-28
申请号：US18326895
申请日：2023-05-31
发明人： Ji Woo AHN , Dongwoo KIM , Jaehou NAH , Bumjin CHANG , Yurim CHA , Yeonjoo CHOI , Ilyoung CHOI
摘要： A negative active material for a rechargeable lithium battery and a rechargeable lithium battery including the same are disclosed, and the negative active material includes a primary particle of a crystalline carbon-based material and secondary particle that is an assembly of the primary particles, wherein a ratio of an average particle diameter (D50) of the secondary particle relative to an average particle diameter (D50) of the primary particle (average particle diameter (D50) of the secondary particle/average particle diameter (D50) of the primary particle) ranges from about 1.5 to about 5 and an aspect ratio of the primary particle ranges from about 1 to about 7.
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26.发明公开公开(公告)号：US20230197932A1
公开(公告)日：2023-06-22
申请号：US17964135
申请日：2022-10-12
发明人： Jaewon KIM , Yongseok KIM , Sojeong YU , Kyeu Yoon SHEEM , Jungjoon KIM , Jaehou NAH , Hyejin KIM , Eunjoo LEE
IPC分类号： H01M4/36 , H01M4/38 , H01M4/583 , H01M10/052
CPC分类号： H01M4/364 , H01M4/386 , H01M4/583 , H01M10/052 , H01M2004/027
摘要： A negative active material for a rechargeable lithium battery includes a composite of porous silicon and amorphous carbon, the composite having macropores with a size of about 50 nm or more, and a porosity of about 15% to about 40%.
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公开(公告)号：US20230078236A1
公开(公告)日：2023-03-16
申请号：US17939142
申请日：2022-09-07
发明人： Eunjoo LEE , Yongseok KIM , Jaewon KIM , Jaehou NAH , Kyeu Yoon SHEEM
IPC分类号： H01M4/36 , H01M4/38 , H01M4/587 , H01M4/58 , H01M10/0525
摘要： A negative active material for a rechargeable lithium battery and a rechargeable lithium battery, the negative active material includes a porous silicon-carbon composite that includes silicon, carbon, and magnesium silicate (MgSiO3), wherein the negative active material has a diffraction peak intensity ratio IMgSiO3(610)/ISi(111) of 0.001
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28.发明申请公开(公告)号：US20210151746A1
公开(公告)日：2021-05-20
申请号：US17097659
申请日：2020-11-13
发明人： Jongmin WON , Young-Min KIM , Jaemyung KIM , Jaehou NAH , Changsu SHIN , Dae-Hyeok LEE
IPC分类号： H01M4/36 , H01M10/0525 , H01M4/38 , H01M4/62
摘要： 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.
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公开(公告)号：US20210143411A1
公开(公告)日：2021-05-13
申请号：US17085007
申请日：2020-10-30
发明人： Dae-Hyeok LEE , Young-Min KIM , Jaemyung KIM , Jaehou NAH , Changsu SHIN , Jongmin WON
IPC分类号： H01M4/36 , H01M4/587 , H01M4/38 , H01M10/0525
摘要： 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.
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公开(公告)号：US20200280060A1
公开(公告)日：2020-09-03
申请号：US16700203
申请日：2019-12-02
发明人： Young-Min KIM , Changsu SHIN , Soonho AHN , Jaehou NAH , Jaemyung KIM
摘要： 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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