801562.fig.006a
(a)
801562.fig.006b
(b)
Figure 6: Electrochemical measurements of prepared samples: (a) CV curves of LiFePO4 and the interconnected LiFePO4/C nanoparticles in a voltage range of 2.5~4.2 V at a scanning rate of 0.5 mV s−1. (b) Comparison of impedance spectra of LiFePO4 and LiFePO4/C.