In this work, the authors proposed a unique strategy to prepare a high performance Lithium–Sulfur (Li–S) battery cathode by an N-rich nano-graphene hollow sphere from the Prussian blue analog Co3[Co(CN)6]2. The one-pot solution method with low cost materials was designed to synthesize the cathode by annealing with different temperatures and consistent HCl etching steps for the precursor. The Li–S batteries made by this precursor showed remarkable charge–discharge stability (570.4 mA h g−1 after 500 cycles at a 1 C current density) and outstanding rate performance (1145.5, 717.9, and 672.5 mA hg−1 at 0.1, 1.0, and 2.0 Ag−1 current densities) at 800 °C. The results indicated that the stable three-dimensional multi-layer hollow sphere structure relieved the volume expansion of sulfur, which had a significant impact on the polysulfide adsorption, inhibiting the “shuttle effect.” Also, the rich doping of nitrogen in this structure produced many defects and active sites that improved the interfacial adsorption of polysulfides. While Co3[Co(CN)6]2 shows its potential as a cathode material, the material design method used in this paper provides a unique approach to realizing a high performance sulfur cathode for Li–S batteries.
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19 October 2020
Research Article|
October 20 2020
Prussian blue analog Co3[Co(CN)6]2 as a cathode material for lithium–sulfur batteries Available to Purchase
Zengcheng Zhang;
Zengcheng Zhang
1
Laboratory of Infrared Material and Devices, Advanced Technology Research Institute, Ningbo University
, Ningbo 315211, China
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Qing Jiao
;
Qing Jiao
a)
1
Laboratory of Infrared Material and Devices, Advanced Technology Research Institute, Ningbo University
, Ningbo 315211, China
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Changgui Lin
;
Changgui Lin
1
Laboratory of Infrared Material and Devices, Advanced Technology Research Institute, Ningbo University
, Ningbo 315211, China
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Xianghua Zhang
;
Xianghua Zhang
2
Laboratory of Glasses and Ceramics, Institute of Chemical Science, UMR CNRS 6226, University of Rennes1
, Rennes 35042, France
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Yinsheng Xu
;
Yinsheng Xu
3
Wuhan University Technology, State Key Lab Silicate Mat Architectures
, Wuhan 430074, China
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Jinghua Wu;
Jinghua Wu
a)
4
Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences
, Ningbo, Zhejiang 315201, China
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Guang Jia;
Guang Jia
5
Ningbo Institute of Oceanography
, Ningbo 315832, China
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Xiayin Yao
Xiayin Yao
4
Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences
, Ningbo, Zhejiang 315201, China
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Zengcheng Zhang
1
Qing Jiao
1,a)
Changgui Lin
1
Xianghua Zhang
2
Yinsheng Xu
3
Jinghua Wu
4,a)
Guang Jia
5
Xiayin Yao
4
1
Laboratory of Infrared Material and Devices, Advanced Technology Research Institute, Ningbo University
, Ningbo 315211, China
2
Laboratory of Glasses and Ceramics, Institute of Chemical Science, UMR CNRS 6226, University of Rennes1
, Rennes 35042, France
3
Wuhan University Technology, State Key Lab Silicate Mat Architectures
, Wuhan 430074, China
4
Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences
, Ningbo, Zhejiang 315201, China
5
Ningbo Institute of Oceanography
, Ningbo 315832, China
Appl. Phys. Lett. 117, 163905 (2020)
Article history
Received:
August 08 2020
Accepted:
October 03 2020
Citation
Zengcheng Zhang, Qing Jiao, Changgui Lin, Xianghua Zhang, Yinsheng Xu, Jinghua Wu, Guang Jia, Xiayin Yao; Prussian blue analog Co3[Co(CN)6]2 as a cathode material for lithium–sulfur batteries. Appl. Phys. Lett. 19 October 2020; 117 (16): 163905. https://doi.org/10.1063/5.0024287
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