Rechargeable Aqueous Zinc-Ion Battery Based on Porous Framework Zinc Pyrovanadate Intercalation Cathode
Type
ArticleKAUST Department
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) DivisionFunctional Nanomaterials and Devices Research Group
Material Science and Engineering Program
Physical Science and Engineering (PSE) Division
Date
2017-12-11Online Publication Date
2017-12-11Print Publication Date
2018-02Permanent link to this record
http://hdl.handle.net/10754/626636
Metadata
Show full item recordAbstract
In this work, a microwave approach is developed to rapidly synthesize ultralong zinc pyrovanadate (Zn3V2O7(OH)2·2H2O, ZVO) nanowires with a porous crystal framework. It is shown that our synthesis strategy can easily be extended to fabricate other metal pyrovanadate compounds. The zinc pyrovanadate nanowires show significantly improved electrochemical performance when used as intercalation cathode for aqueous zinc–ion battery. Specifically, the ZVO cathode delivers high capacities of 213 and 76 mA h g−1 at current densities of 50 and 3000 mA g−1, respectively. Furthermore, the Zn//ZVO cells show good cycling stability up to 300 cycles. The estimated energy density of this Zn cell is ≈214Wh kg−1, which is much higher than commercial lead–acid batteries. Significant insight into the Zn-storage mechanism in the pyrovanadate cathodes is presented using multiple analytical methods. In addition, it is shown that our prototype device can power a 1.5 V temperature sensor for at least 24 h.Citation
Xia C, Guo J, Lei Y, Liang H, Zhao C, et al. (2017) Rechargeable Aqueous Zinc-Ion Battery Based on Porous Framework Zinc Pyrovanadate Intercalation Cathode. Advanced Materials: 1705580. Available: http://dx.doi.org/10.1002/adma.201705580.Sponsors
C.X. and J.G. contributed equally to this work. Research reported in this publication has been supported by King Abdullah University of Science and Technology (KAUST).Publisher
WileyJournal
Advanced MaterialsPubMed ID
29226488Additional Links
http://onlinelibrary.wiley.com/doi/10.1002/adma.201705580/fullae974a485f413a2113503eed53cd6c53
10.1002/adma.201705580
Scopus Count
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