Carbon Coated Submicron sized-LiFePO4: Improved High Rate Performance Lithium Battery Cathode

High rate performance along with high specific energy is the foremost criteria for advanced lithium-ion batteries. To improve the high rate capability and cyclic performance of LiFePO4, continuous carbon coating technique was adopted. The carbon coated submicron-LiFePO4 (C-LiFePO4), composite was successfully prepared via. a solution based method followed by carbonization process. C-LiFePO4 composite exhibits excellent electrochemical properties, including superior high rate cyclic performance and cyclic stability at relatively high charge-discharge current rate at 20 °C. In-situ continuous carbon coating exercises a significant impact on the electronic conduction and the unique composite demonstrates excellent electrochemical performance with reversible capacity of 148 mAh g-1 and 114 mAh g-1 at 1C and 10C current rate respectively.