CPC H01M 4/366 (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 10/0525 (2013.01); H01M 2004/027 (2013.01)] | 15 Claims |
1. An anode for a lithium-ion secondary battery, the anode comprising:
a current collector;
a first anode mixture layer formed on at least one surface of the current collector; and
a second anode mixture layer formed on the first anode mixture layer,
wherein the first anode mixture layer and the second anode mixture layer include a carbon-based active material, respectively,
the first anode mixture layer includes a first binder, a first silicon-based active material, and a first conductive material,
the second anode mixture layer includes a second binder, a second silicon-based active material, and a second conductive material,
contents of the first conductive material and the second conductive material are different from each other with respect to the total combined weight of the first anode mixture layer and the second anode mixture layer,
types of the first silicon-based active material and the second silicon-based active material are different from each other, and
the first silicon-based active material includes a silicon oxide-based active material, and
the second silicon-based active material includes a Si—C composite.
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