The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
In Situ Raman Spectroscopy of Sulfur Speciation in Lithium–Sulfur Batteries
Abstract
In situ Raman spectroscopy and cyclic voltammetry were used to investigate the mechanism of sulfur reduction in lithium-sulfur battery slurry cathodes with 1 M lithium bis(trifluoromethane sulfonyl)imide (LiTFSI) and tetraethylene glycol dimethyl ether (TEGDME)/1,3-dioxolane (DIOX) (1/1, v/v). Raman spectroscopy shows that long-chain polysulfides (S8(2-)) were formed via S8 ring opening in the first reduction process at ∼2.4 V vs Li/Li(+) and short-chain polysulfides such as S4(2-), S4(-), S3(•-), and S2O4(2-) were observed with continued discharge at ∼2.3 V vs Li/Li(+) in the second reduction process. Elemental sulfur can be reformed in the end of the charge process. Rate constants obtained for the appearance and disappearance polysulfide species shows that short-chain polysulfides are directly formed from S8 decomposition. The rate constants for S8 reappearance and polysulfide disappearance on charge were likewise similar. The formation of polysulfide mixtures at partial discharge was found to be quite stable. The CS2 additive was found to inhibit the sulfur reduction mechanism allowing the formation of long-chain polysulfides during discharge only and stabilizing the S8(2-) product.
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Citations
Cites
Li-O2 and Li-S batteries with high energy storage
Bruce, P. G., Freunberger, S. A., Hardwick, L. J., & Tarascon, J.-M. (2012) · Nature Materials · doi:10.1038/nmat3191 · Cited by 9,479
Cited by
Mechanism and Kinetics of Li2S Precipitation in Lithium–Sulfur Batteries
Fan, F. Y., Carter, W. C., & Chiang, Y. (2015) · Advanced Materials · doi:10.1002/adma.201501559 · Cited by 987
Establishing reaction networks in the 16-electron sulfur reduction reaction
Liu, R., Wei, Z., Peng, L., Zhang, L., Zohar, A., Schoeppner, R., Wang, P., Wan, C., Zhu, D., Liu, H., et al. (2024) · Nature · doi:10.1038/s41586-023-06918-4 · Cited by 573
Progress in Mechanistic Understanding and Characterization Techniques of Li‐S Batteries
Xu, R., Lu, J., & Amine, K. (2015) · Advanced Energy Materials · doi:10.1002/aenm.201500408 · Cited by 507
Emerging Catalysts to Promote Kinetics of Lithium–Sulfur Batteries
Wang, P., Xi, B., Huang, M., Chen, W., Feng, J., & Xiong, S. (2021) · Advanced Energy Materials · doi:10.1002/aenm.202002893 · Cited by 451
Steudel, R., & Chivers, T. (2019) · Chemical Society Reviews · doi:10.1039/c8cs00826d · Cited by 304
Metadata
- Authors
- Wu, H.-L., Huff, L. A., & Gewirth, A. A.
- Venue
- ACS Applied Materials & Interfaces
- Publisher
- American Chemical Society (ACS)
- Published
- 2015-01-14
- Volume
- 7
- Issue
- 3
- Pages
- 1709-1719
- ISSN
- 1944-8244 (ISSN-L)
- 1944-8252
- OpenAlex
- W2314434099
- Cited by
- 338
- References
- 1
- FWCI
- 10.61
- Type
- journal article
- Language
- en
- Open access
- closed
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