能源化学(英文版)

能源化学(英文) ›› 2018, Vol. 27 ›› Issue (6): 1555-1565.DOI: 10.1016/j.jechem.2018.04.014

• Review • 上一篇    下一篇

Recent progress on confinement of polysulfides through physical and chemical methods

Sheng-Yi Lia,b, Wen-Peng Wanga,b, Hui Duana,b, Yu-Guo Guoa,b   

  1. a CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Institue of Chemistry, Chinese Academy of Sciences(CAS), Beijing 100190, China;
    b School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
  • 收稿日期:2018-02-12 修回日期:2018-04-08 出版日期:2018-11-15 发布日期:2018-10-12
  • 通讯作者: Yu-Guo Guo
  • 作者简介:Sheng-Yi Li received his bachelor's degree in Academy of Fundamental and Interdisciplinary Sciences from Harbin Institute of Technology in 2015;Wen-Peng Wang received his bachelor's degree in Chemistry from Shandong University in 2015. He is currently a Ph.D. candidate under the supervision of Prof. Yu-Guo Guo at ICCAS;Hui Duan received her B.S. degree in Department of Chemistry from Northeast Normal University in 2014. She is currently a Ph.D. candidate under the supervision of Prof. Yu-Guo Guo and Prof. Li-Jun Wan at ICCAS;Yu-Guo Guo is a Professor of Chemistry at ICCAS. He received his Ph.D. in Physical Chemistry from ICCAS in 2004. He worked at the Max Planck Institute for Solid State Research at Stuttgart (Germany) first as a Guest Scientist and then a Staff Scientist from 2004 to 2007.
  • 基金资助:

    This work was supported by Basic Science Center Project of National Natural Science Foundation of China under grant No. 51788104, the National Natural Science Foundation of China (grant nos. 51772301 and 21773264), the National Key R&D Program of China (grant no. 2016YFA0202500), and the "Strategic Priority Research Program" of the Chinese Academy of Sciences (grant no. XDA09010300).

Recent progress on confinement of polysulfides through physical and chemical methods

Sheng-Yi Lia,b, Wen-Peng Wanga,b, Hui Duana,b, Yu-Guo Guoa,b   

  1. a CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Institue of Chemistry, Chinese Academy of Sciences(CAS), Beijing 100190, China;
    b School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2018-02-12 Revised:2018-04-08 Online:2018-11-15 Published:2018-10-12
  • Contact: Yu-Guo Guo
  • About author:Sheng-Yi Li received his bachelor's degree in Academy of Fundamental and Interdisciplinary Sciences from Harbin Institute of Technology in 2015;Wen-Peng Wang received his bachelor's degree in Chemistry from Shandong University in 2015. He is currently a Ph.D. candidate under the supervision of Prof. Yu-Guo Guo at ICCAS;Hui Duan received her B.S. degree in Department of Chemistry from Northeast Normal University in 2014. She is currently a Ph.D. candidate under the supervision of Prof. Yu-Guo Guo and Prof. Li-Jun Wan at ICCAS;Yu-Guo Guo is a Professor of Chemistry at ICCAS. He received his Ph.D. in Physical Chemistry from ICCAS in 2004. He worked at the Max Planck Institute for Solid State Research at Stuttgart (Germany) first as a Guest Scientist and then a Staff Scientist from 2004 to 2007.
  • Supported by:

    This work was supported by Basic Science Center Project of National Natural Science Foundation of China under grant No. 51788104, the National Natural Science Foundation of China (grant nos. 51772301 and 21773264), the National Key R&D Program of China (grant no. 2016YFA0202500), and the "Strategic Priority Research Program" of the Chinese Academy of Sciences (grant no. XDA09010300).

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摘要： With high theoretical energy density and the natural abundance of S, lithium-sulfur (Li-S) batteries are considered to be the promising next generation high-energy rechargeable energy storage devices. However, issues including electronical insulation of S, the lithium polysulfides (LiPSs) dissolution and the short cycle lifespan have prevented Li-S batteries from being practical applied. Feasible settlements of confining LiPSs to reduce the loss of active substances and improve the cycle stability include wrapping sulfur with compact layers, designing matrix with porous or hollow structures, adding adsorbents owning strong interaction with sulfur and inserting polysulfide barriers between cathodes and separators. This review categorizes them into physical and chemical confinements according to the influencing mechanism. With further discussion of their merits and flaws, synergy of the physical and chemical confinement is believed to be the feasible avenue that can guide Li-S batteries to the practical application.

关键词: Lithium-sulfur batteries, Confinement of polysulfides, Physical structure design, Chemical bonding, Shuttle effect

Abstract: With high theoretical energy density and the natural abundance of S, lithium-sulfur (Li-S) batteries are considered to be the promising next generation high-energy rechargeable energy storage devices. However, issues including electronical insulation of S, the lithium polysulfides (LiPSs) dissolution and the short cycle lifespan have prevented Li-S batteries from being practical applied. Feasible settlements of confining LiPSs to reduce the loss of active substances and improve the cycle stability include wrapping sulfur with compact layers, designing matrix with porous or hollow structures, adding adsorbents owning strong interaction with sulfur and inserting polysulfide barriers between cathodes and separators. This review categorizes them into physical and chemical confinements according to the influencing mechanism. With further discussion of their merits and flaws, synergy of the physical and chemical confinement is believed to be the feasible avenue that can guide Li-S batteries to the practical application.

Key words: Lithium-sulfur batteries, Confinement of polysulfides, Physical structure design, Chemical bonding, Shuttle effect