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题名: LiAl0.03Mn1.97O4的流变相辅助微波合成及电化学性能
作者: 崔涛; 华宁; 韩英; 康雪雅
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
刊名: 电子元件与材料
发表日期: 2007
DOI: 10.14106/j.cnki.1001-2028.2007.12.007
卷: 26, 期:12, 页:10-13
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。
英文摘要: The LiAl_(0.03)Mn_(1.97)O_4 used in lithium-ion batteries was synthesized by a rheological-phase-assisted microwave synthesis method.The samples were compared with LiMn_2O_4 and LiAl_(0.03)Mn_(1.97)O_4 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.
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内容类型: 期刊论文
URI标识: http://ir.xjipc.cas.cn/handle/365002/2012
Appears in Collections:材料物理与化学研究室_期刊论文

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作者单位: 中国科学院新疆理化技术研究所;中国科学院研究生院

Recommended Citation:
崔涛,华宁,韩英,等. LiAl0.03Mn1.97O4的流变相辅助微波合成及电化学性能[J]. 电子元件与材料,2007,26(12):10-13.
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