CPC H01M 4/364 (2013.01) [H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 4/386 (2013.01); H01M 4/587 (2013.01); H01M 4/622 (2013.01); H01M 2004/027 (2013.01)] | 17 Claims |
1. An anode for a lithium secondary battery, comprising:
an anode current collector; and
an anode active material layer formed on at least one surface of the anode current collector, the anode active material layer comprising a carbon-based active material, a first silicon-based active material doped with magnesium, and a second silicon-based active material not doped with magnesium,
wherein a content of the first silicon-based active material is in a range from 2 wt % to 20 wt % based on a total weight of the anode active material layer,
wherein a Mg1s spectrum of a surface of the first silicon-based active material measured by an X-ray photoelectron spectroscopy satisfies Formula 1:
PMg/(PMg+PMgO)≤0.6 [Formula 1]
wherein, in Formula 1, PMg is an area of a 1303 eV peak of the Mg1s spectrum, and PMgO is an area of a 1304.5 eV peak of the Mg1s spectrum.
|