Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Effect of Cathode Materials (MS2, M=Fe, Ni, Co) on Electrochemical Properties of Thermal Batteries

열전지용(MS2, M=Fe, Ni, Co)계 양극의 전기화학적 특성 연구

  • Lee, Jungmin (The 4th R&D Institute-4, Agency for Defense Development) ;
  • Im, Chae-Nam (The 4th R&D Institute-4, Agency for Defense Development) ;
  • Yoon, Hyun-Ki (The 4th R&D Institute-4, Agency for Defense Development) ;
  • Cheong, Hae-Won (The 4th R&D Institute-4, Agency for Defense Development)
  • 이정민 (국방과학연구소 4기술연구본부 4부) ;
  • 임채남 (국방과학연구소 4기술연구본부 4부) ;
  • 윤현기 (국방과학연구소 4기술연구본부 4부) ;
  • 정해원 (국방과학연구소 4기술연구본부 4부)
  • Received : 2017.07.05
  • Accepted : 2017.07.31
  • Published : 2017.09.01
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Abstract

Thermal batteries are used in military power sources that require robustness and long storage life for applications in missiles and torpedoes. $FeS_2$ powder is currently used as a cathode material because of its high specific energy density, environmental non-toxicity, and low cost. $MS_2$ (M = Fe, Ni, Co) cathodes have been explored as novel candidates for thermal batteries in many studies; however, the discharge characteristics (1, 2, 3 plateau) of single cells in thermal batteries with different cathodes have not been elucidated in detail. In this study, we independently analyzed the discharge voltage and calculated the total polarizations of single cells using $MS_2$ cathodes. Based on the results of this study, we propose $NiS_2$ as a potential cathode material for use in thermal batteries.

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