Abstract
The cyclic stability of Cr2O3 is very poor due to the large volume change during lithiation/delithiation. In this study, we have found that Cr2O3 nanocrystals synthesized by using a simple hydrothermal method can improve its cyclic stability. Sample calcined at 430 °C has uniform size, compact structure and high crystallization degree. These Cr2O3 nanocrystals exhibit a stable cyclic performance of 185 mAh g−1 after 100 cycles at 100 mA g−1. It is useful in real life, such as providing power consumption for minitype device, etc.
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Acknowledgements
Financial support was provided by National Natural Science Foundation of China (Nos. 51704242), the Fundamental Research Funds for the Central Universities (3102018zy045), the Natural Science Basic Research Plan in Shaanxi Province of China (Program No. 2017JQ5116), China Postdoctoral Science Foundation (No. 2016M590619), Natural Science Foundation of Shandong Province (No. ZR2016EEQ28) and Qingdao Postdoctoral Application Research Project.
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Bai, Y., Qu, S., Jia, Z. et al. Cr2O3 nanocrystal anode materials with improved cyclic stability for lithium ion batteries. J Mater Sci: Mater Electron 29, 11795–11800 (2018). https://doi.org/10.1007/s10854-018-9279-6
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DOI: https://doi.org/10.1007/s10854-018-9279-6