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利用高压静电纺丝技术与溶胶凝胶法相结合制备出了锂离子电池正极材料LiM0.1Ni0.4MnL5 O4 (M:Co,Cr,Fe)纳米纤维.采用X射线衍射(XRD)、场发射扫描电镜(FESEM)对材料的晶体结构和表面形貌进行了表征,并采用恒流充放电手段研究了材料在室温下的循环稳定性和倍率特性.结果表明:LiFe0.1Ni0.4Mn1.5O4材料以0.5C充放电循环100周后容量保持率高达95.5%,显示了良好的循环稳定性;而LiCr0.1 Ni0.4 Mn1.5 O4材料以10 C放电比容量仍高达120mAh/g,显示出了极好的倍率特性.

参考文献

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