A crystallized and pure phase cathode material LiFePO4 was prepared by an arc-melting technique within a few seconds and the ingots were obtained from raw materials to liquid mixture after cooling. Morphologies evolution of LiFePO4 samples from ingots to nanosize could be simply realized in a first step followed by a fast calcination and carbon coating by organic pyrolysis. The electrochemical testing demonstrated that LiFePO4/C electrode delivered a high reversible capacity of 163 mAh g(-1) at 0.2 C with initial columbic efficiency of 98.9% and the specific capacity of 108 mAh g(-1) at 50 C. Even at high rate cycability, the capacities of 93 mAh g(-1) at 20 degrees C at 25 degrees C and 152 mAh g(-1) at 5 degrees C at 60 degrees C after 300 cycles were achieved, respectively, exhibited superior rate capability and improved electrochemical properties over a wide temperature range, particularly at high temperature. Moreover, the potential mechanism was proposed for the outstanding rate performance of the LiFePO4/C.