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LiAl_(0.03)Mn_(1.97)O_4的流变相辅助微波合成及电化学性能 被引量：1

Synthesis and electrochemical properties of LiAl_(0.03)Mn_(1.97)O_4 by a rheological-phase-assisted microwave synthesis method
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摘要 采用流变相辅助微波合成法,制备了结晶度好、纯度高的尖晶石相的锂离子电池正极材料LiAl0.03Mn1.97O4。对其进行了XRD分析和SEM研究,并与传统固相法制备的LiMn2O4和LiAl0.03Mn1.97O4进行了比较。结果表明,该合成法制备的LiAl0.03Mn1.97O4具有优良的电化学性能,用这种材料制造的电池具有比较高的首次放电容量(115 mAh/g)以及良好的可逆性和循环性能,25次循环后比容量几乎不变,保持在115 mAh/g左右。 The LiAl0.03Mn1.97O4used in lithium-ion batteries was synthesized by a rheological-phase-assisted microwave synthesis method. The samples were compared with LiMn2O4 and LiAl0.03Mn1.97O4 obtained from the traditional solid-state reaction method and were investigated by XRD and SEM. The sample was used as cathode material for lithium-ion battery, whose charge/discharge properties and cycle performance were examined. The results reveal that the powder prepared by this method exhibits a higher initial discharge capacity of 115 mAh/g, much better reversibility and good cycling stability, after 25 cycles without discharge capacity fading, retaining 115 mAh/g.
作者 崔涛 华宁 韩英 康雪雅
机构地区 中国科学院新疆理化技术研究所
出处 《电子元件与材料》 CAS CSCD 北大核心 2007年第12期10-13,共4页 Electronic Components And Materials
关键词 电子技术 LiAl0.03Mn1.97O4 锂离子电池正极材料 流变相辅助微波合成法 electron technology LiAl0.03Mn1.97O4 lithium-ion battery cathode material rheological-phase-assisted microwave synthesis method
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25

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同被引文献13

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电子元件与材料
2007年 第12期

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