Key Laboratory for Micro-Nano Optoelectronic Devices of Ministry of Education, State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, Changsha, China
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J. Mater. Chem., 2012,22, 25373-25379
16 May 2012,
17 Oct 2012
First published online
17 Oct 2012
ZnSnO3, as an anode material for lithium ion batteries (LIBs), was investigated for the first time with structures ranging from unique ZnSnO3 nanocubes (ZSCs) to ZnSnO3 nanosheets (ZSSs). These structures were synthesized by a dual-hydrolysis-assisted liquid precipitation reaction and subsequent hydrothermal route. After calcination of the precursors, both formed two types of regular ZnSnO3 mesocrystal. Both mesocrystals showed almost the same capacity at the initial cycle, which agreed with the theoretical value of 1320 mA h g−1. However, they exhibited different cycle abilities and rate performances. The capacity of the ZSSs decayed slowly over the first 12 cycles and no obvious degradation was observed after then. However, the capacity of the ZSCs decayed more quickly. After 50 cycles, the capacity of the ZSSs had only decreased by 38.4%, in contrast to a decrease of 77.5% for the capacity of the ZSCs. The different performances of the same material can be related to the differences in phase and exposed facets.
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Journal of Materials Chemistry
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