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Cited by 423

The DOI matches its Crossref record; 31 of the 31 references it cites were found in a registry or an index.

Bidirectional Catalysts for Liquid–Solid Redox Conversion in Lithium–Sulfur Batteries

Wang, Ruochen, Luo, Chong, Wang, Tianshuai, Zhou, Guangmin, Deng, Yaqian, He, Yanbing, Zhang, Qianfan, Kang, Feiyu, Lv, Wei, Yang, Quan‐Hong·2020·Advanced Materials

Abstract

Accelerated conversion by catalysis is a promising way to inhibit shuttling of soluble polysulfides in lithium–sulfur (Li–S) batteries, but most of the reported catalysts work only for one direction sulfur reaction (reduction or oxidation), which is still not a root solution since fast cycled use of sulfur species is not finally realized. A bidirectional catalyst design, oxide–sulfide heterostructure, is proposed to accelerate both reduction of soluble polysulfides and oxidation of insoluble discharge products (e.g., Li 2 S), indicating a fundamental way for improving both the cycling stability and sulfur utilization. Typically, a TiO 2–Ni 3 S 2 heterostructure is prepared by in situ growing TiO 2 nanoparticles on Ni 3 S 2 surface and the intimately bonded interfaces are the key for bidirectional catalysis. For reduction, TiO 2 traps while Ni 3 S 2 catalytically converts polysulfides. For oxidation, TiO 2 and Ni 3 S 2 both show catalytic activity for Li 2 S dissolution, refreshing the catalyst surface. The produced sulfur cathode with TiO 2–Ni 3 S 2 delivers a low capacity decay of 0.038% per cycle for 900 cycles at 0.5C and specially, with a sulfur loading of 3.9 mg cm−2, achieves a high capacity retention of 65% over 500 cycles at 0.3C. This work unlocks how a bidirectional catalyst works for boosting Li–S batteries approaching practical uses.

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Metadata

Authors
Wang, R., Luo, C., Wang, T., Zhou, G., Deng, Y., He, Y., Zhang, Q., Kang, F., Lv, W., & Yang, Q.
Venue
Advanced Materials
Publisher
Wiley
Published
2020-07-06
Volume
32
Issue
32
Pages
e2000315-e2000315
ISSN
  • 0935-9648 (ISSN-L)
  • 1521-4095
OpenAlex
W3039186878
Cited by
423
References
31
FWCI
24.56
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Bidirectional Catalysts for Liquid–Solid Redox Conversion in Lithium–Sulfur Batteries. https://app.cochat.ai/papers/10.1002/adma.202000315
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Wang, R., Luo, C., Wang, T., Zhou, G., Deng, Y., He, Y., Zhang, Q., Kang, F., Lv, W., & Yang, Q. (2020). Bidirectional Catalysts for Liquid–Solid Redox Conversion in Lithium–Sulfur Batteries. Advanced Materials. https://doi.org/10.1002/adma.202000315

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