In Situ/Operando Visualization of Electrode Processes in Lithium-Sulfur Batteries: A Review

Authors

Shuang-yan LANG, Key Laboratory of Molecular Nanostructure and Nanotechnology, Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China;University of Chinese Academy of Sciences, Beijing 100049, China;
Xin-cheng HU, Key Laboratory of Molecular Nanostructure and Nanotechnology, Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China;University of Chinese Academy of Sciences, Beijing 100049, China;
Rui WEN, Key Laboratory of Molecular Nanostructure and Nanotechnology, Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China;University of Chinese Academy of Sciences, Beijing 100049, China;Follow
Li-jun WAN, Key Laboratory of Molecular Nanostructure and Nanotechnology, Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China;University of Chinese Academy of Sciences, Beijing 100049, China;Follow

Corresponding Author

Rui WEN(ruiwen@iccas.ac.cn);
Li-jun WAN(wanlijun@iccas.ac.cn)

Abstract

Lithium-sulfur (Li-S) batteries have been regarded as one of the most promising candidates for the next-generation energy storage devices. Fundamental understanding of the structure and evolution processes at electrode-electrolyte interfaces is essential to the further development. In this review, we summarize recent advances in the interfacial observations by means of various in situ/operando visualization techniques, including scanning probe microscopy (SPM), electron microscopy (EM), X-ray microscopy (XRM) and optical microscopy (OM). The real-time investigation provides important evidence for the morphology and component changes including S/Li₂S transformation, polysulfide dissolution on cathodes and Li/solid electrolyte interphase (SEI) evolution on anodes, which presents reaction mechanism and design principles for Li-S battery optimization.

Graphical Abstract

Keywords

in situ visualization, Li-S batteries, electrode-electrolyte interface, Li anode, electrode processes

DOI Link

https://doi.org/10.13208/j.electrochem.181048

Publication Date

2019-04-28

Online Available Date

2019-01-15

Revised Date

2019-01-08

Received Date

2018-12-14

Recommended Citation

Shuang-yan LANG, Xin-cheng HU, Rui WEN, Li-jun WAN. In Situ/Operando Visualization of Electrode Processes in Lithium-Sulfur Batteries: A Review[J]. Journal of Electrochemistry, 2019 , 25(2): 141-159.
DOI: 10.13208/j.electrochem.181048
Available at: https://jelectrochem.xmu.edu.cn/journal/vol25/iss2/2