期刊
SMALL
卷 13, 期 47, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201702551
关键词
H2V3O8; intercalation reaction; large-scale energy storage; zinc-ion batteries
类别
资金
- National Key Research and Development Program of China [2016YFA0202603, 2016YFA0202604]
- Programme of Introducing Talents of Discipline to Universities [B17034]
- National Natural Science Foundation of China [51521001, 51602239, 51502227, 51579198]
- National Natural Science Fund for Distinguished Young Scholars [51425204]
- China Postdoctoral Science Foundation [2015T80845]
- Fundamental Research Funds for the Central Universities [2016III005, 2016IVA090, 2017III009, 2017III005, 2017III007, 2017III030]
- Wuhan Morning Light Plan of Youth Science and Technology [2017050304010316]
- China Scholarship Council [201606955094, 201606955096]
Rechargeable aqueous zinc-ion batteries have offered an alternative for large-scale energy storage owing to their low cost and material abundance. However, developing suitable cathode materials with excellent performance remains great challenges, resulting from the high polarization of zinc ion. In this work, an aqueous zinc-ion battery is designed and constructed based on H2V3O8 nanowire cathode, Zn(CF3SO3)(2) aqueous electrolyte, and zinc anode, which exhibits the capacity of 423.8 mA h g(-1) at 0.1 A g(-1), and excellent cycling stability with a capacity retention of 94.3% over 1000 cycles. The remarkable electrochemical performance is attributed to the layered structure of H2V3O8 with large interlayer spacing, which enables the intercalation/de-intercalation of zinc ions with a slight change of the structure. The results demonstrate that exploration of the materials with large interlayer spacing is an effective strategy for improving electrochemical stability of electrodes for aqueous Zn ion batteries.
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