Anode for Secondary Battery and Lithium Secondary Battery Including the Same

An anode for a secondary battery, comprising:

• an anode current collector;
• and
• a first anode active material layer on the anode current collector, the first anode active material layer including a first anode active material and a carbon nanotube as a conductive material;
• and
• a second anode active material layer spaced apart from the anode current collector with the first anode active material layer interposed therebetween, the second anode active material layer including a second anode active material and a carbon nanotube as a conductive material,
• wherein each of the first anode active material and the second anode active material layer comprising a carbon-based active material and a silicon-based active material,
• wherein a content of the silicon-based active material in the second anode active material layer is greater than a content of the silicon-based active material in the first anode active material layer,
• a content of the carbon nanotube as the conductive material in each of the first anode active material and the second anode active material is in a range from 0.1 wt % to 5 wt %
• a Raman R value of the carbon nanotube included in the second anode active material layer is smaller than a Raman R value of the carbon nanotube included in the first anode active material layer, and
• the Raman R value is defined as a ratio (ID/IG) of an intensity (ID) of a D band and an intensity of a G band (IG) in a Raman spectrum obtained by a Raman spectroscopy.