Nature Communications (Jul 2018)

Propagation topography of redox phase transformations in heterogeneous layered oxide cathode materials

  • Linqin Mu,
  • Qingxi Yuan,
  • Chixia Tian,
  • Chenxi Wei,
  • Kai Zhang,
  • Jin Liu,
  • Piero Pianetta,
  • Marca M. Doeff,
  • Yijin Liu,
  • Feng Lin

DOI
https://doi.org/10.1038/s41467-018-05172-x
Journal volume & issue
Vol. 9, no. 1
pp. 1 – 8

Abstract

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Here the authors demonstrate a spectroscopic and imaging approach to study redox solid-state phase transformation in lithium ion cathode materials under thermal abuse conditions. The valence curvature of the propagation front alternates as a result of local chemical and structural heterogeneities.