Thermodynamic properties and single-electrode Peltier heats of a Li-Al alloy in a LiCl-KCl eutectic melt

Koji Amezawa, Naoichi Yamamoto, Yoichi Tomii, Yasuhiko Ito

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

Thermodynamic properties of a Li-Al alloy in the two-phase (αAl+βLiAl), (βLiAl+γLi3Al2), and (γ/Li3Al2+liquid) regions, and in the single βLiAl phase region were determined from electromotive force measurements in a LiCl-KCl eutectic melt at temperatures from 650 to 760 K. From the obtained thermodynamic properties, the single-electrode Peltier heat of a Li-Al alloy electrode was evaluated as a function of the alloy composition. It turned out that the single-electrode Peltier heat of a Li-Al alloy electrode exhibits discontinuities at the compositions of coexisting-single phase boundaries. The change of the single-electrode Peltier heat on a phase boundary was interpreted thermodynamically and was found to follow from thermodynamic data for the single phases and the phase diagram data.

Original languageEnglish
Pages (from-to)1069-1074
Number of pages6
JournalJournal of the Electrochemical Society
Volume146
Issue number3
DOIs
Publication statusPublished - 1999 Mar
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

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