ISIS Neutron and Muon Source Data Journal

Anisotropic Li+ diffusion in the cathode material LiFePO4

Abstract: 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. Now we would like to address the anisotropy using single crystals. To fully decompose the components 3 orthogonal directions has to be measured. Alternatively, anisotropy can be shown already using 2 orientations. 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 100-500 K.

Principal Investigator: Dr Fanni Juranyi
Experimenter: Dr Izumi Umegaki
Local Contact: Dr Mark Telling
Experimenter: Professor Martin Mansson
Experimenter: Dr David Vaknin
Experimenter: Professor Oscar Tjernberg
Experimenter: Dr Jun Sugiyama
Experimenter: Dr Rasmus Toft-Petersen

DOI: 10.5286/ISIS.E.RB1610469

ISIS Experiment Number: RB1610469

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

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

For Example:
Dr Fanni Juranyi et al; (2016): Anisotropic Li+ diffusion in the cathode material LiFePO4, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1610469

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