The high capacity and excellent rate capability of Ti-doped Li2MnSiO4 as a cathode material for Li-ion batteries

摘要: Ti-doped Li2Mn1−xTixSiO4 as cathode materials for Li-ion batteries was successfully synthesized by a facile sol–gel method. The addition of Ti to the precursors changed particle sizes and specific surface areas Li2MnSiO4. galvanostatic charge–discharge measurements showed that (x = 0.06, 0.1, 0.2) electrodes delivered high charge capacity 298, 286, 248 mA h g−1 discharge 203, 211, 171 in first cycle, much higher than undoped Li2MnSiO4 (52 charging 26 discharging). Moreover, samples exhibited good cycling stability superior rate capability, compared pristine sample. Even at (2 C), still maintained capacities. remarkable enhancement battery performance terms capability doped primarily attributed decrease transfer resistance improvement Li+ diffusion coefficient.