Chemical delithiation and exfoliation of LixCoO2

Angelika Basch*, Liliana de Campo, Jörg Albering, John W. White

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Progressive chemical .delithiation of commercially available lithium cobalt oxide (LiCoO 2 ) showed consecutive changes in the crystal properties. Rietveld refinement of high resolution X-ray and neutron diffraction revealed an increased lattice parameter c and a reduced lattice parameter a for chemically
delithiated samples. Using electron microscopy we have also followed the changes in the texture of the samples towards what we have found is a critical layer stoichiometry of about LixCoO2 with x ¼1/3 that causes the grains to exfoliate. The pattern of etches by delithiation suggests that unrelieved strain fields
may produce chemical activity.
Original languageEnglish
Pages (from-to)102-110
JournalJournal of Solid State Chemistry
Publication statusPublished - 2014

Fields of Expertise

  • Advanced Materials Science

Treatment code (Nähere Zuordnung)

  • Basic - Fundamental (Grundlagenforschung)
  • Application
  • Experimental

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