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所属单位：电子信息工程学院

发表刊物：NANOSCALE RESEARCH LETTERS

关键字：Sodium-ion battery Mesoporous silicon Magnesium thermal reduction Silicon-based anode materials

摘要：Sodium-ion batteries have been widely used in energy storage owing to its high sodium content and low cost This study proves that mesoporous silicon microspheres (MSMs) with the homogeneously distributed mesopores ranging from 1 to 10 nm can be used as anodes of NIBs. In situ magnesiothermic reduction of silicon oxide was carried out to synthesize the MSM samples. An anode in NIBs was tested, and it was observed that the MSMs sample which was calcined at 650 degrees C had a good rate performance of 160 mAh g(-1) at 1000 mAg(-1) and a high reversible capacity of 390 mAh g(-1) at 100 mAg(-1) after 100 cycles. Moreover, its long-term cycling performance was 0. 08 mAh g(-1) decay per cycle for 100 cycles, which was quite excellent MSMs have high reversibility, good cycling performance, and excellent rate capability, which are related to its ultrafine particle size and mesoporous morphology.

ISSN号：1556-276X

是否译文：否

发表时间：2018-09-10

合写作者：马骁,张劲东,Lin, Zi-Xia,Zhao, Bin

通讯作者：邱旦峰