Phase transition behavior of NaCrO2 during sodium extraction studied by synchrotron-based X-ray diffraction and absorption spectroscopy

Yong Ning Zhou, Jing Jing Ding, Kyung Wan Nam, Xiqian Yu, Seong Min Bak, Enyuan Hu, Jue Liu, Jianming Bai, Hong Li, Zheng Wen Fu, Xiao Qing Yang

Research output: Contribution to journalArticlepeer-review

Abstract

The structural evolution of layered NaCrO2 cathodes for sodium-ion batteries during charge was investigated using synchrotron-based in situ X-ray diffraction and ex situ X-ray absorption spectroscopy. Three solid solution phases with expanding 'c' and contracting 'a'/'b' lattice parameters were observed. The coordination changes of Cr and Na during sodium extraction were also studied.

Original languageEnglish
Pages (from-to)11130-11134
Number of pages5
JournalJournal of Materials Chemistry A
Volume1
Issue number37
DOIs
Publication statusPublished - 2013 Oct 7

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

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