Synthesis of lithium titanate nanorods as anode materials for lithium and sodium ion batteries with superior electrochemical performance

Synthesis of lithium titanate nanorods as anode materials for lithium and sodium ion batteries with superior electrochemical performance
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合成钛酸锂纳米棒作为锂、钠离子电池负极材料,具有优异的电化学性能

DOI:
10.1016/j.jpowsour.2015.02.061
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发表时间:
2015-06
影响因子:
9.2
通讯作者:
Wang, Xianyou
Wang, Xianyou
中科院分区:
工程技术2区
文献类型:
--
作者:
Tan, Jinli;Yan, Zichao;Huang, Zhifeng;Wang, Xianyou

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以TiO 2-B为钛源和模板剂,采用水热法成功合成了Li 4 Ti 5 O 12纳米棒。可以观察到直径为100-200 nm、长度为1-2 μm的Li 4 Ti 5 O 1 - 2纳米棒。Li 4 Ti 5 O 12纳米棒在20 C下1000次循环后表现出约101.1 mAh g-1的高放电容量,用于锂离子电池阳极。Li 4 Ti 5 O 12纳米棒还显示出优异的钠存储性能,其在0.1C下100次循环后具有约131.6 mAh g− 1的可逆容量。基于电化学性能,Li 4 Ti 5 O 12纳米棒在锂离子电池和钠离子电池中具有巨大的潜力,可作为汽车和固定式储能等应用的大规模储能器件。
Li4Ti5O12nanorods have been successfully synthesized via hydrothermal method using TiO2–B as titanium source and template. Such Li4Ti5O12nanorods with sizes of 100–200 nm in diameter and 1–2 μm in length can be observed. The Li4Ti5O12nanorods exhibit high discharge capacity of about 101.1 mAh g−1after 1000 cycles at 20C for the lithium ion battery anode. The Li4Ti5O12nanorods also show excellent sodium storage performance, which have a reversible capacity of approximately 131.6 mAh g−1after 100 cycles at 0.1C. Based on the electrochemical performance, it is suggested that Li4Ti5O12nanorods have a great potential for lithium and sodium ion battery that are available as large-scale storage devices for applications such as automotive and stationary energy storage.
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