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Figure 6 | Nanoscale Research Letters

Figure 6

From: MnO2 prepared by hydrothermal method and electrochemical performance as anode for lithium-ion battery

Figure 6

Nyquist plot of Li/MnO 2 cells after five charging and discharging cycles at open circuit voltage. The frequency ranged from 0.1 Hz to 100 kHz with an applied AC signal amplitude of 5 mV. (a) Caddice-clew-like and (b) urchin-like MnO2 samples. Symbols represent experimental data and lines represent fitted spectra using equivalent circuit. The inset is the equivalent circuit.

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