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Citation: Na Li, Dan Xu, Di Bao, Jinling Ma, Xinbo Zhang. A binder-free, flexible cathode for rechargeable Na-O₂ batteries[J]. Chinese Journal of Catalysis, ;2016, 37(7): 1172-1179. doi: 10.1016/S1872-2067(15)61089-0 shu

A binder-free, flexible cathode for rechargeable Na-O₂ batteries

Na Li ^a,b, ,
Dan Xu ^a,b ,
Di Bao ^a,b ,
Jinling Ma ^a,b ,
Xinbo Zhang ^a,b

a. State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China;
b. University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 25 January 2016
Revised Date: 29 March 2016

Fund Project: This work was supported by the 100 Talents Programme of the Chinese Academy of Sciences, the National Basic Research Program of China (973 Program, 2014CB932300, 2012CB215500), and the National Natural Science Foundation of China (21422108, 51472232, 51301160).

Rechargeable Na-O₂ batteries have attracted significant attention as energy storage devices owing to their theoretically high energy storage capacity and the natural abundance of sodium. However, practical applications of this type of battery still suffer from low specific capability, poor cycle stability, instable electrolytes, and unstable polymer binders. Herein, we report a facile method of synthesizing binder free and flexible cathodes with Co₃O₄ nanowire arrays vertically grown onto carbon textiles. When employed as a cathode for Na-O₂ batteries, this cathode exhibits superior performance, including a reduction of charge overpotential, high specific capacity (4687 mAh/g), and cycle stability up to 62 cycles. These enhanced performance can be attributed to the synergistic effect of the porosity and catalytic activity of the Co₃O₄ nanowire catalyst.
- Flexible,
- Binder-free,
- Cobalt oxide nanowires,
- Porosity,
- Catalytic activity
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A binder-free, flexible cathode for rechargeable Na-O₂ batteries