journal article Apr 29, 2023

Transition Metal Compounds Family for Li–S Batteries: The DFT‐Guide for Suppressing Polysulfides Shuttle

View at Publisher Save 10.1002/adfm.202300825
Abstract
AbstractLithium–sulfur batteries (LSBs) are considered as one of the best candidates for the next generation of high‐energy‐density storage devices owing to their superior theoretical energy density, high specific capacity, and sufficient sulfur reservoirs. However, the shuttle effect of soluble polysulfides and sluggish LiPSs redox kinetics restrict the further application of LSBs. The polysulfides shuttle effect can be efficiently alleviated and LiPSs conversion kinetics be accelerated by designing optimal transition metal compounds (TMCs) as multifunctional catalyst materials. Herein, recent advances about TMCs in LSBs are systematically summarized and analyzed. First of all, the intrinsic structural characteristics of TMCs and relevant application on their works to the adsorption energies studies are described in detail. Second, the bonding manners and structural properties are analyzed by density functional theory (DFT)‐guided calculations, focusing on the adsorption and diffusion behavior between TMCs and LiPSs. Furthermore, the mechanism of LiPSs redox reaction conversion is studied from kinetics aspects, thus developing the continuous dynamic analysis on “adsorption–diffusion–conversion” toward LiPSs. Eventually, this study particularly highlights the importance of modification engineering and provides a forward‐looking overview for its further application prospects by introduction of the previous advanced studies in LSBs.
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143
Citations
253
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Details
Published
Apr 29, 2023
Vol/Issue
33(32)
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Funding
National Natural Science Foundation of China Award: 52202104
China Postdoctoral Science Foundation Award: 2021T140433
Natural Science Foundation of Zhejiang Province Award: LZY23B030002
Natural Science Foundation of Shaanxi Province Award: 2019JZ‐24
Cite This Article
Qi Liang, Sizhe Wang, Yao Yao, et al. (2023). Transition Metal Compounds Family for Li–S Batteries: The DFT‐Guide for Suppressing Polysulfides Shuttle. Advanced Functional Materials, 33(32). https://doi.org/10.1002/adfm.202300825
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