The Effects of Power Levels/Time Periods for Sputtering Cobalt onto Carbon Nanotubes/Graphene Composites and Cobalt Annealed on the Characteristics of Anode Materials for Lithium-Ion Batteries

Figure 17

Nyquist diagrams of (a) cobalt oxide (power = 100 W and time = 60 min for sputtering cobalt on nickel foam) and (b) cobalt oxide/carbon nanotubes/graphene composites (power = 100 W and time = 60 min for sputtering cobalt on carbon nanotubes/graphene composites).

(a)

(b)