Dear colleagues,
I'm currently doing a research about Li-ion battery. In this case, I used LiFePO4 as a cathode. I got a peak of reduction around 0.8 V. I supposed that the cathodic peak seen around 0.8 V vs Li/Li+ represented the reduction of electrolyte or perhaps the reduction of Fe2+ to Fe0. So, if you have some informations about that, please help me. Thanks in advance.
Best Regards,
Vinsensia
Hi,
your potential window for CV was not appropriate.
cyclic voltammogram of LiFePO4 measured at 20 °C. The pair of peaks, consisting of an anodic and a cathodic peak, observed around 3.4 V vs. Li/Li+ corresponded to the two-phase charge–discharge reaction of the Fe2+/Fe3+ redox couple. We supposed that the cathodic peak seen around 0.8 V vs. Li/Li+ represented the reduction of Fe2+ to Fe0. This voltammogram indicated that only one electrochemical reaction, corresponding to the peak pair shown around 3.4 V vs. Li/Li+, occurred during the charge and discharge of the LiFePO4.(copied from paper).
i attached some papers read it. I think it will help you.
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