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1.发明公开公开(公告)号：US20240213457A1
公开(公告)日：2024-06-27
申请号：US18535191
申请日：2023-12-11
发明人： Jaewon KIM , Yongseok KIM , Jaehou NAH , Youngugk KIM , Heeyoung CHU , Dae-Hyeok LEE , Hyejin KIM , Sojeong YU
CPC分类号： H01M4/366 , H01M4/133 , H01M4/134 , H01M4/386 , H01M4/587 , H01M10/052 , H01M2004/027
摘要： Disclosed are a negative active material for a rechargeable lithium battery and a rechargeable lithium battery. The negative active material for a rechargeable lithium battery includes a silicon-carbon composite; and graphene on a surface of the silicon-carbon composite, wherein a specific surface area of the negative active material is about 1.6 m2/g to about 2 m2/g.
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2.发明公开公开(公告)号：US20240170656A1
公开(公告)日：2024-05-23
申请号：US18385018
申请日：2023-10-30
发明人： Hyejin KIM , Yongseok KIM , Sojeong YU , Kyeu Yoon SHEEM , Jungjoon KIM , Jaewon KIM , Jaehou NAH , Eunjoo LEE
CPC分类号： H01M4/386 , H01M4/466 , H01M4/485 , H01M4/583 , H01M2004/027
摘要： A negative active material for a rechargeable lithium battery, having a core including porous silicon and about 1 wt % to about 12 wt % based on 100 wt % of a total weight of the negative active material of magnesium and a carbon layer on a surface of the core, to more effectively inhibit the expansion of the negative electrode and thereby more effectively inhibit the expansion of the secondary battery.
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3.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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