Fig xA Impedance spectra for the
Fig. 8. (a) Discharge profiles and (b) rate performances of the prepared C-LMP at various current rates.Figure optionsDownload full-size imageDownload as PowerPoint slide
CV measurements were performed on the prepared LMP and C-LMP samples in order to characterize their electrochemical reactions in Li-ion batteries. As seen in Fig. 9, no obvious peak is observed in the CV profile of the LMP sample. The negligible response suggests that Abiraterone acetate LiMnPO4 without a carbon coating has poor electrochemical performance. However, LiMnPO4/C exhibits obvious redox peaks at 4.02 V and 4.25 V versus Li/Li+, which are associated with the reduction and oxidation, respectively, of the Mn2+/Mn3+ redox couple. Thus, redox peaks indicate that the reversibility of the electrochemical reaction for the as-prepared LiMnPO4/C is good, which agrees with the results of the charge/discharge experiments.
Fig. 9. CV curves of LMP and C-LMP at a scan rate of 0.1 mV?s−1.Figure optionsDownload full-size imageDownload as PowerPoint slide