ISIS Neutron and Muon Source Data Journal

Quantifying the Extent of Improved Li-ion Motion using Quasi-Elastic Neutron Scattering

Abstract: Sulphide superionic materials are candidate electrolytes for all-solid-state batteries. Quasi-elastic neutron scattering (QENS) is sought to obtain bulk diffusion rates and activation energies for two Li5.5PS4.5Cl1.5 electrolytes prepared by different methods; a standard cold pressed electrolyte, and a spark plasma sintered version. The ionic conductivity of the plasma sintered Li5.5PS4.5Cl1.5 samples is substantially greater than that of the commercial cold pressed material. The SPS post-processing, typically promotes grain growth which leads to enhanced conductivities, however structural modifications when using this SPS method have also been observed. QENS will allow us to determine the true bulk diffusion, which can then be compared to macroscopic diffusion (which considers bulk, grain boundary, and particle interface diffusion) determined by pulsed field gradient nuclear magnetic resonance allowing us to elucidate which of these factors is rate limiting for effective ion diffusion.

Local Contact: Dr Ross Stewart
Experimenter: Mr Bartholomew Payne
Experimenter: Miss Nicole Mitchell

DOI: 10.5286/ISIS.E.RB2320260

ISIS Experiment Number: RB2320260

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
Select the data format above to find out more about it.

Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Ross Stewart et al; (2023): Quantifying the Extent of Improved Li-ion Motion using Quasi-Elastic Neutron Scattering, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2320260

Data is released under the CC-BY-4.0 license.