- Title
- Graphene fluoride as a conductive agent for Li-argyrodite electrolyte containing all-solid-state batteries
- Creator
- Dai, X.; Song, J. H.; Wang, J. E.; Chen, X.; Kim, D. K.; Kim, D. J.
- Relation
- Materials Today Chemistry Vol. 25, Issue September 2022, no. 100967
- Publisher Link
- http://dx.doi.org/10.1016/j.mtchem.2022.100967
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2022
- Description
- A sulfide-based Li-argyrodite, Li6PS5X (X = Cl, Br, I), is a promising solid-state electrolyte candidate for next-generation all-solid-state batteries. The compound features high ionic conductivity, which is attributed to the high polarizability of sulfur and anion site disorder, providing advantageous crystallographic geometries for Li-ions to occupy and diffuse. However, the chemical instability of Li6PS5Cl during cycling limits its implementation in practical applications. This study employs graphene fluoride as a conductive agent for the cathode composite to alleviate the undesirable decomposition reactions at the electrolyte interface. The combined measurements of time-dependent X-ray photoelectron spectroscopy and electrochemical analysis confirmed that graphene fluoride significantly enhances the chemical stability of the electrolyte interface, yielding a stable cycling performance.
- Subject
- solid-state electrolyte; conductive agents; interfacial stability; microwave-induced exfoliation; lithium fluoride; SDG 7; Sustainable Development Goals
- Identifier
- http://hdl.handle.net/1959.13/1481694
- Identifier
- uon:50773
- Identifier
- ISSN:2468-5194
- Language
- eng
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