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以铁泥为原料合成锂离子电池正极材料LiFePO_4/C 被引量：1

Synthesis of Cathode Material LiFePO_4/C of Lithium Ion Battery Using Iron Sludge as Raw Material
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摘要 采用溶解一沉淀法将铁泥中的铁元素以FePO4·2H2O的形式回收，并以其作为铁源合成LiFePO4／C．XRD表明LiFePO4／C是橄榄石型晶系纯相．SEM显示LiFePO4／C颗粒大小均匀分布在100～200nm之间．通过充放电测试和循环伏安测试表征了LiFePO4／C的电化学性能，由于Co、Cr、Ni等微量杂质元素的存在，以铁泥为原料合成的LiFePO4／C表现出较好的循环稳定性和倍率性能． Fe was recovered from the iron sludge using dissolution-deposition method in form of FePO4 · 2H20. LiFePOJC was synthesized using FePO4·2H20 as iron source. XRD patterns show that LiFePO4/C is single olivine-type phase and well crystallized. Particles of LiFePO4/C with size ranging from 100 to 200 nm distribute homogeneously. Electrochemical performance is investigated with galvanostatic charge/discharge and cyclic voltammogram tests. LiFePO4/C prepared from the iron sludge shows good stability and rate performance.
作者 常小龙 田建华 单忠强
机构地区 天津大学化工学院
出处 《南开大学学报（自然科学版）》 CAS CSCD 北大核心 2013年第3期10-14,共5页 Acta Scientiarum Naturalium Universitatis Nankaiensis
基金 国家973项目(2009CB220105)
关键词 回收 纳米磷酸铁 铁泥 磷酸铁锂 recovery nano FePO4 iron sludge, LiFePO4
分类号 TM912.9 [电气工程—电力电子与电力传动]
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参考文献12

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南开大学学报（自然科学版）
2013年 第3期

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