Open AccessMnO‐Inlaid hierarchically porous carbon hybrid for lithium‐sulfur batteries
Author(s) -
Liu Weilin,
Fan Xiaojing,
Xu Bin,
Chen Peng,
Tang Dejian,
Meng Fancheng,
Zhou Rulong,
Liu Jiehua
Publication year - 2021
Publication title -
nano select
Language(s) - English
Resource type - Journals
ISSN - 2688-4011
DOI - 10.1002/nano.202000157
Subject(s) - materials science , polysulfide , sulfur , chemical engineering , electrochemistry , carbon fibers , porosity , annealing (glass) , nanoparticle , lithium (medication) , cathode , battery (electricity) , energy storage , nanotechnology , electrode , electrolyte , composite material , metallurgy , chemistry , composite number , medicine , power (physics) , physics , quantum mechanics , endocrinology , engineering
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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