Novel proton conductors in the layered oxide material Li xlAl0.5Co0.5O2

Rong Lan, Shanwen Tao*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

53 Citations (Scopus)


It is demonstrated that good proton conductors can be obtained in transition-element-rich layered intercalation materials such as Li xAl0.5Co0.5O2. A power density of 173 mW cm-2 is achieved at 525 C with a thick electrolyte (0.79 mm thick). The ionic conductivity of nominal LiAl0.5Co 0.5O2 is 0.1 S cm-1 at 500 C. This is the highest among known polycrystalline proton-conducting materials.

Original languageEnglish
Article number1301683
JournalAdvanced Energy Materials
Issue number7
Publication statusPublished - 13 May 2014


  • conductivity
  • fuel cells
  • layered materials
  • oxides
  • proton-conducting materials


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