Nano Select (Mar 2021)

MnO‐Inlaid hierarchically porous carbon hybrid for lithium‐sulfur batteries

  • Weilin Liu,
  • Xiaojing Fan,
  • Bin Xu,
  • Peng Chen,
  • Dejian Tang,
  • Fancheng Meng,
  • Rulong Zhou,
  • Jiehua Liu

DOI
https://doi.org/10.1002/nano.202000157
Journal volume & issue
Vol. 2, no. 3
pp. 573 – 580

Abstract

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Abstract Lithium‐sulfur batteries possess great prospects in next‐generation energy‐storage devices though there are still some tough challenges currently. In this paper, MnO‐inlaid hierarchically porous carbon hybrid is prepared by a one‐pot solid‐state method and followed with annealing treatment. The MnO nanoparticles are synthesized via glucose‐derived carbon reduction with salt as the template. The resultant carbon‐coated MnO, which owns a hierarchical porous structure, benefits to alleviate the shuttle effect of lithium‐sulfur battery and immobilize the soluble polysulfide to improve the electrochemical performance by both physical limitation and chemisorption. As a result, the cathode MnO‐PC/S reveals a high initial discharge capacity of 1384 mAh g−1 at 0.2 C and a high retention capacity of 593 mAh g−1 over 200 cycles.

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