Structural and electrochemical properties of LiV3O8 prepared by combustion synthesis

Structural and electrochemical properties of LiV3O8 prepared by combustion synthesis
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燃烧合成LiV3O8的结构和电化学性能

DOI:
10.1016/j.jallcom.2009.06.188
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发表时间:
2009-11
影响因子:
6.2
通讯作者:
Yuan, Hua-Tang
Yuan, Hua-Tang
中科院分区:
材料科学2区
文献类型:
--
作者:
Jiao, Li-Fang;Si, Yu-Chang;Wang, Yong-Mei;Li, Hai-Xia;Yuan, Hua-Tang

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以金属硝酸盐为氧化剂,尿素为燃料,采用燃烧合成法制备了LiV 3 O 8粉体。讨论了(Li+V)/CO(NH 2)2配比和热处理温度对材料结构和电化学性能的影响。电化学性能测试结果表明,在300°C、(Li+V)/CO(NH 2)2比为1:0.5的条件下合成的样品B1具有最高的首次放电容量(317.3mAhg− 1)和最好的循环性能(30次循环后为238.9mAhg− 1)。
LiV3O8powders were prepared by combustion synthesis, using metallic nitrates as the oxidant and metal sources and urea as fuel. The effect of (Li+V)/CO(NH2)2ratio and heat-treatment temperature on the structure and electrochemical properties were discussed. The electrochemical behavior of the product showed that sample B1synthesized at 300°C with 1:0.5 ratio of (Li+V)/CO(NH2)2showed the highest initial discharge capacity of 317.3mAhg−1and the best cycle ability with 238.9mAhg−1after 30 cycles.
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