Novel proton conductors in the layered oxide material LixlAl0.5Co0.5O2

Rong Lan, Shanwen Tao

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Abstract

It is demonstrated that good proton conductors can be obtained in transition-element-rich layered intercalation materials such as LixAl0.5Co0.5O2. 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 LiAl0.5Co0.5O2 is 0.1 S cm−1 at 500 °C. This is the highest among known polycrystalline proton-conducting materials.
Original languageEnglish
Number of pages6
JournalAdvanced Energy Materials
Early online date14 Jan 2014
DOIs
Publication statusE-pub ahead of print - 14 Jan 2014

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Keywords

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

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