This is a page describing data taken during an experiment at the ISIS Neutron and Muon Source. Information about the ISIS Neutron and Muon Source can be found at https://www.isis.stfc.ac.uk.
Detecting O-O diatomics trapped in high energy density Li-ion battery cathode materials using Inelastic Neutron Scattering
Abstract: The energy density of Li-ion batteries is currently restricted by the cathode material, typically a layered Li transition metal (TM) oxide. High energy densities can be accessed in Li-rich materials, such as Li1.2Ni0.13Mn0.54Co0.13O2, by oxidising the oxide ions in the crystal lattice in addition to the TMs present, however, this reaction triggers severe structural rearrangement, including suspected dimerization of oxidised oxide ions to form O-O bonds. Characterising these in the bulk of a solid inorganic material is very challenging, and conclusive identification remains elusive. We propose to use Inelastic Neutron Scattering to record the vibrational spectra of samples of Li1.2Ni0.13Mn0.54Co0.13O2 collected before and after O-oxidation across the range of frequencies expected from O-O diatomics to detect the appearance any O-O diatomic that may be present.
Principal Investigator: Professor Peter Bruce
Local Contact: Professor Stewart Parker
Experimenter: Dr Robert House
Experimenter: Mr JJ Marie
DOI: 10.5286/ISIS.E.RB2010035
ISIS Experiment Number: RB2010035
Part DOI | Instrument | Public release date | Download Link |
---|---|---|---|
10.5286/ISIS.E.RB2010035-1 | MAPS | 29 September 2023 | Download |
Publisher: STFC ISIS Neutron and Muon Source
Data format: RAW/Nexus
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Data Citation
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publication is as:
[author], [date], [title], [publisher],
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Professor Peter Bruce et al; (2020): Detecting O-O diatomics trapped in high energy density Li-ion battery cathode materials using Inelastic Neutron Scattering, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2010035
Data is released under the CC-BY-4.0 license.