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中文摘要：
应用液相共沉淀-碳热还原法，合成纳米尺寸球形LiFePO4材料，并研究烧结时间对该材料性能的影响．XRD、SEM、TEM及充放电循环测试表明，烧结时间为10h，LiFePO4的球形度较好，颗粒尺寸：50—100nm．0．1C放电，初始容量为154．6mAh／g，且具有良好的循环性能．
英文摘要：
The spherical LiFePO4 with nano-size is expected as an important direction for LiFePO4 cathode material. With the method of liquid co-deposited-carbonthermal reduction, we prepared spherical LiFePO4 cathode material with nano-size and we put our emphasis on the effect of sintering time on the material. By XRD, SEM, TEM and charge ＆ discharge analysis, we found the sample sintered at 550 ℃ for 10 hours showed the best electrochemical properties and good degree of sphericity, with the size of 40 - 100 nm.
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