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    Anode active material for lithium secondary battery and lithium secondary battery including the same
    1.
    发明授权
    Anode active material for lithium secondary battery and lithium secondary battery including the same 有权

    公开(公告)号：US12021230B2

    公开(公告)日：2024-06-25

    申请号：US17495876

    申请日：2021-10-07

    申请人： SK On Co., Ltd.

    发明人： Ju Ho Chung ,  Gwi Ok Park ,  Joon Sup Kim ,  Eun Jun Park ,  Dong Il Jang

    IPC分类号： H01M4/38 ,  H01M4/04 ,  H01M4/583 ,  H01M10/0525

    CPC分类号： H01M4/386 ,  H01M4/0471 ,  H01M4/583 ,  H01M10/0525

    摘要： Provided is a lithium secondary battery including a silicon-based anode active material for a lithium secondary battery and an anode formed using the same. The silicon-based anode active material for a lithium secondary battery according to exemplary embodiments includes a surface coated with carbon and doped with lithium. A ratio of a peak area at 102.5 eV to a total area of a peak area at 100 eV, the peak area at 102.5 eV, and a peak area at 104 eV, which appear in an Si2p spectrum when measuring by X-ray photoelectron spectroscopy (XPS), is 40% or less, thereby allowing an electrode to be stably manufactured without changing physical properties of the slurry during manufacturing the electrode. In addition, the anode active material for a secondary battery may be usefully used to manufacture a lithium secondary battery having high discharge capacity and high energy density characteristics.