Direct observation of ordered oxygen defects on the atomic scale in Li2O2 for Li-O2 batteries

  • Dongdong Xiao
  • , Shanmu Dong
  • , Jing Guan
  • , Lin Gu*
  • , Shanming Li
  • , Nijie Zhao
  • , Chaoqun Shang
  • , Zhenzhong Yang
  • , Hao Zheng
  • , Chun Chen
  • , Ruijuan Xiao
  • , Yong Sheng Hu
  • , Hong Li
  • , Guanglei Cui
  • , Liquan Chen
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

The structure of the discharge product, Li2O2, in lithium-oxygen batteries is revealed directly on the atomic scale. A unique stage ordering that the peroxide vacancy occupies preferentially in every other layer along the c-axis of Li2O2 is observed. This finding provides new insight into the relationship between the structure of Li2O2 and the discharge/charge behavior of Li-O2 batteries.

Original languageEnglish
Article number1400664
JournalAdvanced Energy Materials
Volume5
Issue number3
DOIs
StatePublished - 1 Feb 2015
Externally publishedYes

Keywords

  • atomic-scale structures
  • lithium peroxide
  • lithium-oxygen batteries
  • oxygen defects

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