التفاصيل البيبلوغرافية
| العنوان: |
Microwave-assisted hydrothermal synthesis of nanostructured spinel Li4Ti5O12 as anode materials for lithium ion batteries |
| المؤلفون: |
Liu, Jian1, Li, Xifei1, Yang, Jinli1, Geng, Dongsheng1, Li, Yongliang1, Wang, Dongniu1, Li, Ruying1, Sun, Xueliang1 xsun@eng.uwo.ca, Cai, Mei2, Verbrugge, Mark W.2 |
| المصدر: |
Electrochimica Acta. Feb2012, Vol. 63, p100-104. 5p. |
| مصطلحات موضوعية: |
*LITHIUM-ion batteries, *NANOSTRUCTURED materials synthesis, *ANODES, *NANOPARTICLES, *MICROWAVES, *SCANNING electron microscopy |
| مستخلص: |
Abstract: Nanoflower-like and nanoparticle spinel Li4Ti5O12 were synthesized by a microwave-assisted hydrothermal (MH) method following calcination. As-prepared Li4Ti5O12 was characterized by scanning electron microscopy, transmission electron microscopy, X-ray powder diffraction and cyclic voltammetry. The nanoflower-like and nanoparticle Li4Ti5O12 exhibited discharge capacities of 176.7 and 109.8mAhg−1, respectively, for the first cycle, and maintained reversible capacities of 138.4 and 91.7mAhg−1, respectively, at a 1.1 C-rate (200mAg−1) after 100 cycles. The better performance of nanoflower-like Li4Ti5O12 relative to nanoparticle Li4Ti5O12 is attributed to the larger specific surface area and shorter Li+ diffusion path of the former relative to the latter. The MH preparation process is straightforward and fast; thus it shows promise for widespread lithium ion battery applications. [Copyright &y& Elsevier] |
| قاعدة البيانات: |
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