Box-implanted Nb2O5 nanorods as superior anode materials in lithium ion batteries
Box-implanted Nb2O5 nanorods as superior anode materials in lithium ion batteries
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盒式植入 Nb2O5 纳米棒作为锂离子电池的优质负极材料
DOI:
10.1016/j.ceramint.2017.06.105
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发表时间:
2017-10
影响因子:
5.2
通讯作者:
Chen Han
中科院分区:
文献类型:
--
作者:
Shi Chongfu;Xiang Kaixiong;Zhu Yirong;Zhou Wei;Chen Xianhong;Chen Han
One-dimensional Nb2O5nanorods were synthesized by hydrothermal method and applied for anode materials in lithium ion batteries. Solid Nb2O5nanorods are obtained when surfactant P123 was only utilized in the hydrothermal process, while Nb2O5nanorods were pregnant with regular cuboid-shaped boxes when P123 and CTAB surfactants were incorporated. Box-implanted Nb2O5(BI-Nb2O5) nanorods exhibit a high reversible capacity of 237.6 mA h g−1cycled at the current density of 40 mA g−1after 200 cycles and a remarkable rate capacity of 119.5 mA h g−1at the current density of 5000 mA g−1. Their outstanding rate capability can be attributed to regular boxes implanted in Nb2O5nanorods, which can provide fast transportation path for lithium ions and electronics and relieve the volume change in charge and discharge process.
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