Effect of Temperature during Open Vessel Sintering on Li6PS5Cl Solid-State Electrolyte Powders for Use in Cathode Composite Electrodes
The sulfide solid electrolyte Li6PS5Cl has beenshown to be an ideal candidate for use in composite electrodes forall solid-state lithium-ion batteries due to its high ionicconductivity, low activation energy, and rapid processability insolvents (solution-based processing). Many reports for solution-...
| Autores: | , , , , |
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| Formato: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2025 |
| País: | España |
| Recursos: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/382205 |
| Acesso em linha: | http://hdl.handle.net/10261/382205 |
| Access Level: | acceso abierto |
| Palavra-chave: | solid electrolytes Li6PS5Cl argyrodite sintering solution-based synthesis. |
| Resumo: | The sulfide solid electrolyte Li6PS5Cl has beenshown to be an ideal candidate for use in composite electrodes forall solid-state lithium-ion batteries due to its high ionicconductivity, low activation energy, and rapid processability insolvents (solution-based processing). Many reports for solution-based processing of Li6PS5Cl required the electrolyte to bedensified or sealed inside of a closed-quartz vessel prior to a finalhigh-temperature sintering step. This pre-sintering step is useful forunderstanding the full electrochemical properties of the electrolytebut provides little information about usable electrolyte powders forcommercialization. Modern applications of solid electrolytepowders require a feedstock of powdered electrolyte, which canbe processed by tape-casting, screen-printing, aerosol deposition,electrophoretic deposition, and hot powder rolling. The lack of information regarding the sintering of Li6PS5Cl powders for bulkprocessing warrants an investigation into open vessel sintering of solely the Li6PS5Cl electrolyte powders, which can later be used incomposite electrodes. This research uses a solution-based processing technique to synthesize Li6PS5Cl prior to sintering in open-topborosilicate glass containers. Here we show the effects that sintering temperatures have on Li6PS5Cl electrolyte powders duringopen-vessel sintering using X-ray diffraction, scanning electron microscopy, and Raman spectroscopy for morphological analysis.Electrochemical characterization was performed using AC electrical impedance spectroscopy, cyclic voltammetry, andchronoamperometry. Lastly, a full solid-state electrochemical cell was constructed with a cathode composite electrode madefrom the Li6PS5Cl to illustrate the functionality of the electrolyte. |
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