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Low-temperature Synthesis of Peony-like Spinel Li4Ti5O12 as a High-performance Anode Material for Lithium Ion Batteries
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作者 li, guanchao Xia, Jian +2 位作者 Jiao, Jiqing Chen, liuping Shen, Peikang 《Chinese Journal of Chemistry》 SCIE CAS CSCD 2011年第9期1824-1828,共5页
Peony-like spinel Li4Ti5O12 was synthesized via calcination of precursor at the temperature of 400 ℃, and the precursor was prepared through a hydrothermal process in which the reaction of hydrous titanium oxide with... Peony-like spinel Li4Ti5O12 was synthesized via calcination of precursor at the temperature of 400 ℃, and the precursor was prepared through a hydrothermal process in which the reaction of hydrous titanium oxide with lith- ium hydroxide was conducted at 180 ℃. The as-prepared product was investigated by SEM, TEM and XRD, re- spectively. As anode material for lithium ion battery, the Li4Ti5O12 obtained was also characterized by galvanostatic tests and cyclic voltammetry measurements. It is found that the peony-like Li4Ti5O12 exhibited high rate capability of 119.7 mAh·g ^-1 at 10 C and good capacity retention of 113.8 mAh·g ^-1 after 100 cycles at 5 C, and these results indicate the peony-like Li4Ti5O12 has promising applications for lithium ion batteries with high performance. 展开更多
关键词 nanostructures spinel Li4Ti5O12 anode material hydrothermal synthesis electrochemistry
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