【摘要】 以六水合氯化铁、磷钼酸、氧化石墨烯和富马酸为原料,采用水热法合成Fe₂（MoO₄）₃纳米材料,并将其用作锂离子电池负极材料.探讨不同煅烧温度对样品形貌和锂电性能的影响,利用SEM、XRD和EDS等分析技术对样品的形貌和结构进行表征,并对其进行电化学性能测试.结果表明:Fe₂（MoO₄）₃纳米材料是颗粒状的结构,在煅烧温度为550 ^oC时,制备的样品具有良好的电化学性能,当电流密度为100 mA·g^-1,首次放电比容量为1 343.5 mAh·g^-1,循环充放电50次时,放电比容量仍达915 mAh·g^-1,表现出良好的循环性能和倍率性能.Fe₂（MoO₄）₃负极的首次不可逆容量损失,主要与电解液的分解和SEI膜的形成有关.更多还原

【Abstract】 Fe₂（MoO₄）₃ nanomaterials were synthesized by hydrothermal method using six hydrated ferric chloride, phosphomo molybdic acid, graphene oxide and fumaric acid as raw materials, and used as anode materials for lithium ion batteries. To investigate the effect of different calcination temperature on the morphology and electrochemical performance, the morphology and structure of the samples were characterized by SEM, XRD and EDS, and the electrochemical properties of the samples were tested. The results show that Fe₂（MoO₄）₃ nanomaterials are granular structures. When the calcining temperature is 550 ℃, the prepared samples have good electrochemical performance; when the current density is 100 mA·g^-1, the initial discharge specific capacity is 1 343.5 mAh·g^-1 and after 50 cycles of charging and discharging, the discharge specific capacity is still 915 mAh·g^-1, which shows good cycling performance and rate performance. The initial irreversible capacity loss of the Fe₂（MoO₄）₃ anode is mainly related to the decomposition of the electrolyte and the formation of the SEI membrane.更多还原