Structural evolution in LiVS2 anode materials

DOI

Intercalation electrodes operating close to 1V vs. Li+/Li are highly desirable. They are safe and provide protection to plating Li if overcharged, while still giving a satisfactory overall cell potential. The layered sulfide LiVS2 delivers a capacity > 200 mAh/g at 1V. This material is isostructural to the low voltage material LiVO2 that we have studied on Polaris. In our previous study on LiVO2 an intermediate structure between the host material and Li2VO2 was observed. We wish to examine the structures of intermediates in this new sulfide anode material on discharge to Li2VS2 and the structural evolution as a function of lithium insertion/deinsertion and on extended electrochemical cycling. Characterising this structural evolution is important in understanding its function as an anode and how this may be further improved.

Identifier
DOI https://doi.org/10.5286/ISIS.E.24090531
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/24090531
Provenance
Creator Professor Peter Bruce; Mr Steve Clark; Dr Robert Armstrong
Publisher ISIS Neutron and Muon Source
Publication Year 2016
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 2013-05-20T08:51:47Z
Temporal Coverage End 2013-05-22T14:18:11Z