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

作者：Liu Weilin; Fan Xiaojing; Xu Bin; Chen Peng; Tang Dejian; Meng Fancheng; Zhou Rulong; Liu Jiehua

来源：Nano Select, 2020, 2(3): 573-580.

DOI：10.1002/NANO.202000157

• cathode
• glucose
• lithium‐sulfur battery
• MnO
• porous carbon

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.

• 单位
  合肥工业大学