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1.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
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Hyejin KIM , Yongseok KIM , Sojeong YU , Kyeu Yoon SHEEM , Jungjoon KIM , Jaewon KIM , Jaehou NAH , Eunjoo LEE
CPC classification number: H01M4/386 , H01M4/466 , H01M4/485 , H01M4/583 , H01M2004/027
Abstract: 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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公开(公告)号：US20230118457A1
公开(公告)日：2023-04-20
申请号：US17908760
申请日：2021-01-11
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Jungjoon KIM
IPC: H01M4/62 , H01M4/04 , H01M10/052
Abstract: The present invention relates to an anode for a lithium secondary battery, and a lithium secondary battery comprising same, wherein the anode includes a current collector, and an anode active material layer including an anode active material formed on the current collector, and a coating part formed on the anode active material layer, wherein the coating part and the anode active material layer comprise particles of CHF—CO3 group-containing compound.
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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
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Jaewon KIM , Yongseok KIM , Sojeong YU , Kyeu Yoon SHEEM , Jungjoon KIM , Jaehou NAH , Hyejin KIM , Eunjoo LEE
IPC: H01M4/36 , H01M4/38 , H01M4/583 , H01M10/052
CPC classification number: H01M4/364 , H01M4/386 , H01M4/583 , H01M10/052 , H01M2004/027
Abstract: 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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