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

<div>Rate capability (between 0.01 V and 3 V) with different charge-discharge cycles of the coin cell for the N-doped CNTs/graphene composite and Al<sub>2</sub>O<sub>3</sub>/N-doped CNTs/graphene (the best sputtering condition).</div>

Journal of Nanomaterials

fig14

Figure 14

Figure 14: Effects of Alumina Films on N-Doped Carbon Nanotubes/Graphene Composites as Anode Materials of Lithium-Ion Batteries 