以FeCl_3蚀刻废液为铁源制备锂离子电池正极材料LiFePO_4  

Synthesis of lithium-ionic battery anode material LiFePO_4 using FeCl_3 etching waste as iron source

作　　者：郭光辉[1] 张利玉[1] 陈珊[1] 严铁军[1] 汪振忠[1] 王茜[1] 

机构地区：[1]湖北省煤转化与新型碳材料重点实验室武汉科技大学化学工程与技术学院,武汉430081

出　　处：《化工新型材料》2013年第8期43-45,共3页New Chemical Materials

基　　金：湖北省教育厅资助项目(Q20091111)

摘　　要：以模拟三氯化铁蚀刻废液为铁源制备了锂离子电池正极材料-磷酸铁锂,并对磷酸铁锂的结构和形貌进行了表征,对其电化学性能进行了测试。结果表明制得的磷酸铁锂产物结晶度较高,且无杂相,基本是球形颗粒,颗粒粒径为0.3～3μm;并且具有较好的电化学性能,0.5C的倍率下循环100圈后容量保持率为97.8%。LiFePO4 was prepared by using simulated FeCl3 etching waste as iron source for lithium-ionic battery anode materials.The crystalline structure,particle morphology and surface microstructure of the products were characterized by X-ray diffraction（XRD）,scanning electron microscopy（SEM）,respectively.Moreover,the electrochemical properties of the products were investigated by charge/discharge test.The results showed that LiFePO4 obtained had high degree of crystallization without any impurities,exhibited good degree of sphericity with size range from 0.3 to 3μm and delivered good electrochemical performance,its discharge capacity still retained 97.8 % at 0.5 C rate after 100 cycles.

关 键 词：三氯化铁蚀刻废液 正极材料 磷酸铁锂 

分 类 号：TM912[电气工程—电力电子与电力传动]