# Porosity characterisation of solid-state battery electrolyte with terahertz time-domain spectroscopy

> With a growing interest on inorganic ceramics based solid-state electrolytes for all-solid-state batteries, there is a need to maximise their density to optimise electrochemical performance and fuel impermeability. In this paper, we demonstrate the sensitivity of terahertz time-domain spectroscopy (...

## Metadata
- Authors: S. Kiritharan, S. Lucas, Riccardo Degl’Innocenti, Xia Hua, Richard J. Dawson, Hungyen Lin
- Journal: Journal of Power Sources
- Published: 2024-01-13
- DOI: https://doi.org/10.1016/j.jpowsour.2024.234050
- Citations: 16
- Source: OpenAlex
- Access: Open Access

## Technology Hub
- Hub: Battery Technology
- Discipline: Chemistry / Engineering
- Hub URL: https://science-database.com/technology/battery-technology
- Hub llms.txt: https://science-database.com/technology/battery-technology/llms.txt

## Abstract
With a growing interest on inorganic ceramics based solid-state electrolytes for all-solid-state batteries, there is a need to maximise their density to optimise electrochemical performance and fuel impermeability. In this paper, we demonstrate the sensitivity of terahertz time-domain spectroscopy (THz-TDS) combined with effective medium theory to quantify the porosity or density of sodium superionic conductor (NaSICON)-based solid-state electrolyte (SSEs) pellets prepared at densities in the range of 2.2–2.9 g cm−3, corresponding to 50–90 % relative densities sintered at 900–1150 °C. The results of which, have been validated against complementary Archimedes analysis and mercury porosimetry highlighting the potential of THz-TDS for rapid, contactless, non-destructive electrolyte characterisation.

## Links
- DOI: https://doi.org/10.1016/j.jpowsour.2024.234050
- OpenAlex: https://openalex.org/W4390848399
- PDF: https://doi.org/10.1016/j.jpowsour.2024.234050
- JSON API: https://science-database.com/api/v1/technology/battery-technology

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Paper ID: oa-W4390848399 | Hub: battery-technology