Anisotropic Li+ diffusion in the cathode material LiFePO4

DOI

LiFePO4 is cathode material for Li ion batteries. One of the key functional properties is the Li-ion diffusion. Theoretical calculations showed that Li diffusion along the [010] channels is the favored path, and this was later visualized using neutron diffraction. Mu+SR is the only technique which succeeded to measure the ionic diffusion on the atomic scale (and not through a macroscopic sample) in the relevant temperature range. This was done on powder samples. After a successful test experiment, we would like to measure now the anisotropy using single crystals. To fully decompose the components 3 orthogonal directions has to be measured. The limited sample amount results in longer counting times, therefore we apply for 8 days at EMU to measure direction dependent Li diffusion in LiFePO4 single crystals in the temperature range of 150-300 K.

Identifier
DOI https://doi.org/10.5286/ISIS.E.86389680
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/86389680
Provenance
Creator Dr Mark Telling; Dr Jun Sugiyama; Dr Rasmus Toft-Petersen; Dr Ola Kenji Forslund; Dr David Vaknin; Dr Fanni Juranyi; Professor Martin Mansson; Dr Izumi Umegaki; Dr Hiroshi Nozaki; Dr Masao Yano; Professor Yasmine Sassa
Publisher ISIS Neutron and Muon Source
Publication Year 2020
Rights CC-BY Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact isisdata(at)stfc.ac.uk
Representation
Resource Type Dataset
Discipline Photon- and Neutron Geosciences
Temporal Coverage Begin 2017-05-25T08:30:00Z
Temporal Coverage End 2017-06-02T08:30:00Z