Experimental study on alkali metal thermoelectric converter

Toshihisa Masuda, Kotaro Tanaka, Akira Negishi, Takeo Honda

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


A study of an alkali-metal thermoelectric converter (AMTEC) utilizing the sodium ion-conducting β″-alumina to convert heat energy directly to electric energy is presented. A film electrode is fabricated on the surface of a β″-alumina disk using a magnetron sputtering system with molybdenum target. The electrode-disk combination is tested at 1073 K. An open voltage of 0.99 V and a short-circuit current of 1.82 A/cm2 are obtained. A maximum power density of 3.4 kW/m2 is obtained at a current density of 0.88 A/cm2 and a voltage of 0.38 V. This power density is about 65% of the theoretical value which is calculated assuming an internal resistance equal to the resistance of 2-mm-thick β″-alumina.

Original languageEnglish
Pages (from-to)347-351
Number of pages5
JournalProceedings of the Intersociety Energy Conversion Engineering Conference
Publication statusPublished - 1989 Dec 1
Externally publishedYes
EventProceedings of the 23rd Intersociety Energy Conversion Engineering Conference - Denver, CO, USA
Duration: 1988 Jul 311988 Aug 5

ASJC Scopus subject areas

  • Fuel Technology
  • Electrical and Electronic Engineering


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