Research Article
Sea Urchin-Like MnO2/Biomass Carbon Composite Electrode Material for High-Performance Supercapacitors
Figure 2
Comparison of CV curves of pure MnO2 and composite materials (a); CV (b) of the composite at 5–100 mV·s−1; GCD curve of MnO2/BC electrode material (c); magnification plot of two electrode materials (d); the EIS diagram of the prepared electrode material, and the inset is the magnified diagram of part of the high frequency region and the low-frequency region and the simulated equivalent circuit diagram (e); long cycle curve of two materials (f).
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