Negative active material for rechargeable lithium battery, method of preparing the same, and rechargeable lithium battery including the same

Negative active material for rechargeable lithium battery, method of preparing the same, and rechargeable lithium battery including the same

Disclosed are a negative active material for a rechargeable lithium battery that includes a core including silicon oxide represented by the following Chemical Formula 1; and a surface-treatment layer surrounding the core and including metal oxide represented by the following Chemical Formula 2, a me...

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Bibliographische Detailangaben
Hauptverfasser: KIM YOUNG-HWAN, LEE YOUNG-JUN, JEONG GOO-JIN
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Zusammenfassung:Disclosed are a negative active material for a rechargeable lithium battery that includes a core including silicon oxide represented by the following Chemical Formula 1; and a surface-treatment layer surrounding the core and including metal oxide represented by the following Chemical Formula 2, a method of preparing the negative active material, and a rechargeable lithium battery including the negative active material. The metal of the metal oxide is included in an amount of about 0.1 wt % to about 20 wt % based on the total weight of the negative active material for a rechargeable lithium battery. SiOx  [Chemical Formula 1] MyOz  [Chemical Formula 2] In the above Chemical Formula 1 and 2, M, x, y, and z are the same as defined in the specification.