以CH_3COOLi·2H_2O、FeC_2O_4·H_2O、NH_4H_2PO_4、Eu_2O_3及C_6H_(12)O_6为原料,采用两步高温固相法合成了锂离子电池正极材料LiFe_(1-x)Eu_xPO_4/C(x=0,0.06,0.08,0.10),通过XRD,SEM等方法对其物相结构和形貌进行了表征,结构分析表明:LiFe_(1-x)Eu_xPO_4/C(x=0,0.06,0.08,0.10)样品具有橄榄石型晶体结构,空间群为Pnma.Eu的掺杂可使样品颗粒明显细化,引起晶胞参数c值、c/a比值增大、I111/I311比值增大,P-O键长增大.CV和EIS测试结果表明,Eu的掺杂使样品的放电容量增加,提高了循环稳定性能,改善了样品发生电化学反应的动力学性能,电荷转移电阻Rct明显减小,交换电流密度i_0增大. LiFe_ (1-x) Eu_xPO_4 / C (x = 0,0.06) was synthesized by solid-state two-step high temperature method using CH_3COOLi · 2H_2O, FeC_2O_4 · H_2O, NH_4H_2PO_4, Eu_2O_3 and C_6H_ (12) O_6 as raw materials , 0.08,0.10). The phase structure and morphology of the samples were characterized by XRD and SEM. The structural analysis showed that the LiFe_ (1-x) Eu_xPO_4 / C (x = 0,0.06,0.08,0.10) The olivine crystal structure and space group Pnma.Eu doping can significantly refine the sample particles, causing the unit cell parameters c value, c / a ratio increases, I111 / I311 ratio increases, PO bond length increases. CV and EIS test results show that the doping of Eu increases the discharge capacity of the sample, improves the cycle stability and improves the electrochemical performance of the sample. The charge transfer resistance Rct decreases obviously and the exchange current density i_0 increases .