LiFePO4 and carbon-doped LiFePO4were prepared by a novel solid-phase synthesis.The samples were characterized by X-ray diffraction,SEM,elemental analysis and electrochemical performances.These test results showed that...LiFePO4 and carbon-doped LiFePO4were prepared by a novel solid-phase synthesis.The samples were characterized by X-ray diffraction,SEM,elemental analysis and electrochemical performances.These test results showed that the reaction conditions favored stabilization of samples as well as offered some control of the product morphology.Carbon-doped LiFePO4 retained olivine structure and had good electrochemical performance.The results of electrochemical evaluation of the doped product showed a lithium insertion plateau around 3.5 V（vs.Li/Li+） together with the initial charge specific capacity of 159.9 mAh·g-1 at 0.1C rate and with little specific capacity decay after 20 cycle at room temperature.展开更多
文摘LiFePO4 and carbon-doped LiFePO4were prepared by a novel solid-phase synthesis.The samples were characterized by X-ray diffraction,SEM,elemental analysis and electrochemical performances.These test results showed that the reaction conditions favored stabilization of samples as well as offered some control of the product morphology.Carbon-doped LiFePO4 retained olivine structure and had good electrochemical performance.The results of electrochemical evaluation of the doped product showed a lithium insertion plateau around 3.5 V（vs.Li/Li+） together with the initial charge specific capacity of 159.9 mAh·g-1 at 0.1C rate and with little specific capacity decay after 20 cycle at room temperature.
