The DOI matches its Crossref record; 27 of the 27 references it cites were found in a registry or an index.
Elucidating Reversible Electrochemical Redox of Li6PS5Cl Solid Electrolyte
Open accessAbstract
Sulfide-based solid electrolytes are promising candidates for all solid-state batteries (ASSBs) due to their high ionic conductivity and ease of processability. However, their narrow electrochemical stability window causes undesirable electrolyte decomposition. Existing literature on Li-ion ASSBs report an irreversible nature of such decompositions, while Li–S ASSBs show evidence of some reversibility. Here, we explain these observations by investigating the redox mechanism of argyrodite Li 6 PS 5 Cl at various chemical potentials. We found that Li–In | Li 6 PS 5 Cl | Li 6 PS 5 Cl–C half-cells can be cycled reversibly, delivering capacities of 965 mAh g –1 for the electrolyte itself. During charging, Li 6 PS 5 Cl forms oxidized products of sulfur (S) and phosphorus pentasulfide (P 2 S 5 ), while during discharge, these products are first reduced to a Li 3 PS 4 intermediate before forming lithium sulfide (Li 2 S) and lithium phosphide (Li 3 P). Finally, we quantified the relative contributions of the products toward cell impedance and proposed a strategy to reduce electrolyte decomposition and increase cell Coulombic efficiency.
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Cites
High-power all-solid-state batteries using sulfide superionic conductors
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Self-citationSite-Occupation-Tuned Superionic LixScCl3+xHalide Solid Electrolytes for All-Solid-State Batteries
Liang, J., Li, X., Wang, S., Adair, K. R., Li, W., Zhao, Y., Wang, C., Hu, Y., Zhang, L., Zhao, S., et al. (2020) · Journal of the American Chemical Society · doi:10.1021/jacs.0c00134 · Cited by 567
Solid-state lithium batteries: Safety and prospects
Guo, Y., Wu, S., He, Y.-B., Kang, F., Chen, L., Li, H., & Yang, Q.-H. (2022) · eScience · doi:10.1016/j.esci.2022.02.008 · Cited by 507
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Metadata
- Authors
- Tan, D. H. S., Wu, E. A., Nguyen, H., Chen, Z., Marple, M. A. T., Doux, J.-M., Wang, X., Yang, H., Banerjee, A., & Meng, Y. S.
- Venue
- ACS Energy Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2019-08-20
- Volume
- 4
- Issue
- 10
- Pages
- 2418-2427
- ISSN
- 2380-8195 (ISSN-L)
- OpenAlex
- W2969387578
- Cited by
- 719
- References
- 27
- FWCI
- 13.75
- Type
- journal article
- Language
- en
- Open access
- green
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- Tan, D. H. S., Wu, E. A., Nguyen, H., Chen, Z., Marple, M. A. T., Doux, J.-M., Wang, X., Yang, H., Banerjee, A., & Meng, Y. S. (2019). Elucidating Reversible Electrochemical Redox of Li6PS5Cl Solid Electrolyte. ACS Energy Letters. https://doi.org/10.1021/acsenergylett.9b01693
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