A new hydrothermal synthesis of spherical Li4Ti5O12 anode material for lithium-ion secondary batteries | |
Yan, Hui ; Zhu, Zhi ; Zhang, Ding ; Li, Wei ; Qilu | |
刊名 | 电源杂志
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2012 | |
关键词 | Lithium-ion secondary batteries Lithium titanate Spherical Hydrothermal synthesis HIGH-RATE PERFORMANCE ELECTROCHEMICAL PROPERTIES SOLVOTHERMAL SYNTHESIS ELECTRODE MATERIALS NEGATIVE-ELECTRODE INSERTION SPINEL OXIDES SPECTROSCOPY CELLS |
DOI | 10.1016/j.jpowsour.2012.07.023 |
英文摘要 | As-prepared anatase TiO2 with different particle sizes are heated in a lithium hydroxide solution to form Li-Ti-O precursors by using hydrothermal method. Spherical Li4Ti5O12 powders with different particle sizes are obtained by calcining the precursors at 800 degrees C. The X-ray diffraction (XRD) indicates that elevated hydrothermal reaction temperature and higher concentration of lithium hydroxide solution eliminate the content of impurity in the final product. Scanning electron microscopy (SEM) shows the obtained powders have regular spherical morphology. The obtained Li4Ti5O12 with particle size of about 0.5 mu m exhibits excellent electrochemical performance, and the initial discharge capacity reaches 165 mAh g(-1) at 35 mA g(-1) (0.2 C) and more than 97% of the initial capacity is retained after 70 cycles. (C) 2012 Elsevier B.V. All rights reserved.; Electrochemistry; Energy & Fuels; SCI(E); EI; 22; ARTICLE; 45-51; 219 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.pku.edu.cn/handle/20.500.11897/150867] ![]() |
专题 | 化学与分子工程学院 |
推荐引用方式 GB/T 7714 | Yan, Hui,Zhu, Zhi,Zhang, Ding,et al. A new hydrothermal synthesis of spherical Li4Ti5O12 anode material for lithium-ion secondary batteries[J]. 电源杂志,2012. |
APA | Yan, Hui,Zhu, Zhi,Zhang, Ding,Li, Wei,&Qilu.(2012).A new hydrothermal synthesis of spherical Li4Ti5O12 anode material for lithium-ion secondary batteries.电源杂志. |
MLA | Yan, Hui,et al."A new hydrothermal synthesis of spherical Li4Ti5O12 anode material for lithium-ion secondary batteries".电源杂志 (2012). |
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