Fundamental Study on the Electrodes for Alkali Metal Thermoelectric Converters

Kotaro Tanaka, Akira Negishi, Toshihisa Masuda

Research output: Contribution to journalArticlepeer-review


The present study aims to conduct fundamental research on the electrodes for alkali metal thermoelectric converters (AMTEC). The AMTEC utilizing β″-alumina solid electrolytes is a thermally regenerative electrochemical device for the direct conversion of heat to electric energy. Voltage versus current characteristics have been measured on various electrodes. Thin, porous molybdenum electrodes deposited by magnetron sputtering have achieved the highest power density of 0.34 W/cm2 at 1075 K, which is 65% of the theoretical value. The effects of internal resistance are discussed in detail.

Original languageEnglish
Pages (from-to)499-503
Number of pages5
JournalTransactions of the Japan Society of Mechanical Engineers Series B
Issue number510
Publication statusPublished - 1989
Externally publishedYes


  • Direct Energy Conversion
  • Heat Engine
  • Solid Electrolyte
  • Thermal Engineering Equipment
  • Thermoelectric Conversion

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering


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