Issue 45, 2015

Li4Ti5O12 hollow mesoporous microspheres assembled from nanoparticles for high rate lithium-ion battery anodes

Abstract

Li4Ti5O12 hollow mesoporous microspheres (HMMs) assembled from nanoparticles were successfully synthesized by a facile hydrothermal method and subsequent calcination. They exhibit superior rate capabilities with reversible capacities of 176, 125 and 86 mA h g−1 after 10 cycles at 0.1 C, 20 C and 40 C (7000 mA g−1), respectively. The Li4Ti5O12 HMMs also possess outstanding cycle performance with only 3% capacity degradation at 10 C after 500 cycles, which is equivalent to a fade of merely 0.006% per cycle. The comparison with other studies shows that the Li4Ti5O12 HMMs possess more promising reversible capacity and rate capability among the values reported for Li4Ti5O12. These excellent electrochemical properties may be attributed to the unique HMM structures.

Graphical abstract: Li4Ti5O12 hollow mesoporous microspheres assembled from nanoparticles for high rate lithium-ion battery anodes

Supplementary files

Article information

Article type
Paper
Submitted
19 Feb 2015
Accepted
13 Apr 2015
First published
14 Apr 2015

RSC Adv., 2015,5, 35643-35650

Author version available

Li4Ti5O12 hollow mesoporous microspheres assembled from nanoparticles for high rate lithium-ion battery anodes

L. Cao, Y. Hui, H. Ouyang, J. Huang, Z. Xu, J. Li, W. Zhang, S. Chai and S. Guo, RSC Adv., 2015, 5, 35643 DOI: 10.1039/C5RA03158C

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