Invention Grant
- Patent Title: Negative active material, method of preparing the negative active material, electrode including the negative active material, and lithium battery including the electrode
- Patent Title (中): 负极活性物质，负极活性物质的制备方法，负极活性物质的电极和包含电极的锂电池
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Application No.: US13431610Application Date: 2012-03-27
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Publication No.: US09048486B2Publication Date: 2015-06-02
- Inventor: Deok-Hyun Kim , Jae-Myung Kim , Kyu-Nam Joo , Tae-Sik Kim
- Applicant: Deok-Hyun Kim , Jae-Myung Kim , Kyu-Nam Joo , Tae-Sik Kim
- Applicant Address: KR Yongin-si, Gyeonggi-do
- Assignee: SAMSUNG SDI CO., LTD.
- Current Assignee: SAMSUNG SDI CO., LTD.
- Current Assignee Address: KR Yongin-si, Gyeonggi-do
- Agency: Knobbe Martens Olson & Bear LLP
- Priority: KR10-2011-0115915 20111108
- Main IPC: H01M4/133
- IPC: H01M4/133 ; H01M4/134 ; H01M4/1395 ; H01M4/38 ; H01M4/36 ; H01M4/48 ; H01M4/62
Abstract:
A negative active material including: a composite including a matrix comprising silicon oxide, silicon carbide, and carbon and silicon particles dispersed in the matrix; and a carbon coating film formed on a surface of the composite, wherein an intensity ratio of a SiC peak to a Si peak in an X-ray diffraction spectrum is 1 or more, a method of preparing the negative active material, a negative electrode including the negative active material, and a lithium battery including the electrode.
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