Research Article
Multishelled NiO Hollow Spheres Decorated by Graphene Nanosheets as Anodes for Lithium-Ion Batteries with Improved Reversible Capacity and Cycling Stability
Figure 4
(a) Capacity retention and Coulombic efficiency at a current density of 200 mA g−1. (b) Rate performance at various current densities between 100 mA g−1 and 1 A g−1.
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