24 February 2017 Cycling performance of Mn2O3 porous nanocubes and hollow spheres for lithium-ion batteries
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Proceedings Volume 10105, Oxide-based Materials and Devices VIII; 1010523 (2017) https://doi.org/10.1117/12.2251966
Event: SPIE OPTO, 2017, San Francisco, California, United States
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.
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Qian Sun, Tik Lun Leung, Kam Chun Sing, Aleksandra B. Djurišić, Mao Hai Xie, Alan M. C. Ng, Hangkong Li, Kaimin Shih, "Cycling performance of Mn2O3 porous nanocubes and hollow spheres for lithium-ion batteries", Proc. SPIE 10105, Oxide-based Materials and Devices VIII, 1010523 (24 February 2017); doi: 10.1117/12.2251966; https://doi.org/10.1117/12.2251966
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