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Proceedings Paper

Cycling performance of Mn2O3 porous nanocubes and hollow spheres for lithium-ion batteries
Author(s): Qian Sun; Tik Lun Leung; Kam Chun Sing; Aleksandra B. Djurišić; Mao Hai Xie; Alan M. C. Ng; Hangkong Li; Kaimin Shih
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Paper Abstract

Mn2O3 is a promising anode material for lithium ion battery. Two different kinds of structures of Mn2O3 were synthesized via solution processes, the Mn2O3 porous cubes and hollow spheres. Scanning electron microscope images and transmission electron microscopy images clearly show the structures. Electrochemical impedance spectroscopy and cyclic voltammetry measurements were used to characterize their electrochemical properties. As anode materials for lithium ion batteries, Mn2O3 porous cubes performed similarly as Mn2O3 hollow spheres. Both samples started with high initial capacities (1583.2 mAh/g and 1550.7 mAh/g) which were reduced to 173.3 mAh/g and 162.0 mAh/g at 100th cycle at a current density of 100 mA/g. The decrease is likely due to morphology destruction the materials in charging and discharging process.

Paper Details

Date Published: 24 February 2017
PDF: 9 pages
Proc. SPIE 10105, Oxide-based Materials and Devices VIII, 1010523 (24 February 2017); doi: 10.1117/12.2251966
Show Author Affiliations
Qian Sun, The Univ. of Hong Kong (Hong Kong, China)
Tik Lun Leung, The Univ. of Hong Kong (Hong Kong, China)
Kam Chun Sing, The Univ. of Hong Kong (Hong Kong, China)
Aleksandra B. Djurišić, The Univ. of Hong Kong (Hong Kong, China)
Mao Hai Xie, The Univ. of Hong Kong (Hong Kong, China)
Alan M. C. Ng, South Univ. of Science and Technology of China (China)
Hangkong Li, The Univ. of Hong Kong (Hong Kong, China)
Kaimin Shih, The Univ. of Hong Kong (Hong Kong, China)

Published in SPIE Proceedings Vol. 10105:
Oxide-based Materials and Devices VIII
Ferechteh H. Teherani; David C. Look; David J. Rogers, Editor(s)

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