期刊
NANO ENERGY
卷 5, 期 -, 页码 60-66出版社
ELSEVIER
DOI: 10.1016/j.nanoen.2014.02.002
关键词
Sodium ion battery; Anode; Transition metal oxide; Conversion reaction
类别
资金
- National Natural Science Foundation of China [NSFC-21373184]
- Doctoral Fund of Ministry of Education of China
Sodium-ion batteries (SIBs) are attracting considerable attention with expectation of replacing lithium-ion batteries (LIBs) in large-scale energy storage systems (ESSs). To explore high performance anode materials for SIBs is highly desired subject to the current anode research mainly limited to carbonaceous materials. In this study, a series of transition metal oxides (TMOs) is successfully demonstrated as anodes for SIBs for the first time. The sodium uptake/extract is confirmed in the way of reversible conversion reaction. The pseudocapacitance-type behavior is also observed in the contribution of sodium capacity. For Fe2O3 anode, a reversible capacity of 386 mAh g(-1)at 100 mA g(-1) is achieved over 200 cycles; as high as 233 mAh g(-1) is sustained even cycling at a large current-density of 5 A g(-1). (C) 2014 Elsevier Ltd. All rights reserved.
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