열전지 양극용 FeS2 분말의 성형성에 미치는Li2O 첨가 및 열처리의 효과
Effects of Li2O Addition and Heat-Treatment on Formability of FeS2 Powder for Cathode of Thermal Battery
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FeS2 has been widely used for cathode materials in thermal battery because of its high stability and currentcapability at high operation temperature. Salts such as a LiCl-KCl were added as a binder for improving electrical performanceand formability of FeS2 cathode powder. In this study, the effects of the addition of Li2O in LiCl-KCl binderon the formability of FeS2 powder compact were investigated. With the increasing amount of Li2O addition to LiCl-KClbinder salts, the strength of the pressed compacts increased considerably when the powder mixture were pre-heat-treatedabove 350oC. The heat-treatment resulted in promoting the coating coverage of FeS2 particles by the salts as Li2O wasadded. The observed coating as Li2O addition might be attributed to the enhanced wettability of the salt rather than itsreduced melting temperature. The high strength of compacts by the Li2O addition and pre-heat-treatment could improvethe formability of FeS2 raw materials.
Abstract
FeS2 has been widely used for cathode materials in thermal battery because of its high stability and currentcapability at high operation temperature. Salts such as a LiCl-KCl were added as a binder for improving electrical performanceand formability of FeS2 cathode powder. In this study, the effects of the addition of Li2O in LiCl-KCl binderon the formability of FeS2 powder compact were investigated. With the increasing amount of Li2O addition to LiCl-KClbinder salts, the strength of the pressed compacts increased considerably when the powder mixture were pre-heat-treatedabove 350oC. The heat-treatment resulted in promoting the coating coverage of FeS2 particles by the salts as Li2O wasadded. The observed coating as Li2O addition might be attributed to the enhanced wettability of the salt rather than itsreduced melting temperature. The high strength of compacts by the Li2O addition and pre-heat-treatment could improvethe formability of FeS2 raw materials.
참고문헌 (8)
- R. A. Guidotti, , J. Power Sources, 161, pp.1443~ (2006)
- P. J. Masset, , J. Power Sources, 177, pp.595~ (2008)
- R. A. Guidotti, , J. Power Sources, 183, pp.388~ (2008)
- 정해원, , 한국전기전자재료학회지:전기전자재료, 22, pp.24~ (2009)
- 정해원, , 재료마당, 19, pp.14~ (2006)
- 최유송, "열전지의 전기화학적 특성에 미치는 황철석(FeS₂) 입자크기의 영향", 공업화학, 25(2), pp.161~166 (2014), 한국공업화학회[DOI]
- J. S. Reeds, "Principle of Ceramics Processing" (1995), John Wiley & Sons, Inc.
- D. Linden, "Handbook of Batteries" (1994), McGraw-Hill