Fig xA Cyclic voltammograms of the two
The first TAI-1 cyclic voltammogram of the CH-product and the MH-product at a scan rate of 0.1 mV s−1 in 1.5–4.0 V are shown in Fig. 5. The oxidation and reduction peaks correspond to the delithiation and lithiation processes of the host material, and the value of peak current is proportional to the lithium ion diffusion coefficient in the solid electrode. It is obvious that the MH-product has a larger curve area and a higher redox peak current than the CH-product, suggesting that NH4V3O8 nanosheets prepared with MH has a high capacity and a faster kinetics for Li+ intercalation/de-intercalation , and pseudocoelomates is in accordance with the above results of charge/discharge test. There are three redox peaks in the CV curve of NH4V3O8 nanosheets, while the CV curve of NH4V3O8 flakes presents two redox peaks. It is worth pointing out that the CV curve of the MH-product has one pair of redox peaks over the CH-product, indicating its different behavior of Li+ intercalation and de-intercalation in host materials, which is attributed to the unlike structure of the two samples, and this may be a reason for its higher discharge capacity.