Research / 2019 / Article / Fig 4

Research Article

Low-Carbon and Nanosheathed ZnCo2O4 Spheroids with Porous Architecture for Boosted Lithium Storage Properties

Figure 4

(a) Cycling performances of samples at 500 mA g−1 with the corresponding coulombic efficiency; (b) rate capabilities of samples at various current densities from 500 to 4000 mA g−1; (c) long-term cycling performance of ZCO@C-5 composites under large current density.