Effects of Alumina Films on N-Doped Carbon Nanotubes/Graphene Composites as Anode Materials of Lithium-Ion Batteries

<div>(a) The correlation between the charge specific capacity and the roughness and (b) the correlation between the initial coulombic efficiency and the roughness.</div>

Journal of Nanomaterials

fig7

Figure 7

Figure 7: Effects of Alumina Films on N-Doped Carbon Nanotubes/Graphene Composites as Anode Materials of Lithium-Ion Batteries 