한국수소및신에너지학회논문집 (Journal of Hydrogen and New Energy)

  • 제10권3호
  • /
  • Pages.185-189
  • /
  • 1999
  • /
  • 1738-7264(pISSN)
  • /
  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
권호 표지

Ni-MH 2차 전지용 Zr계 수소저장합금전극의 특성에 미치는 치환원소(Co, Cr, Fe)의 영향

The effect of substitution elements(Co, Cr, Fe) on the properties of Zr-based hydrogen storage alloy electrode for Ni-MH secondary battery

  • 최승준 (전남대학교 금속공학과) ;
  • 정소이 (전남대학교 금속공학과) ;
  • 서찬열 (전남대학교 금속공학과) ;
  • 최전 (한려대학교 제철금속공학과) ;
  • 박충년 (전남대학교 금속공학과)
  • Choi, Seung-Jun (Dept. of Metallurgical Eng., Chonnam National University) ;
  • Jung, So-Yi (Dept. of Metallurgical Eng., Chonnam National University) ;
  • Seo, Chan-Yeol (Dept. of Metallurgical Eng., Chonnam National University) ;
  • Choi, Jeon (Dept. of Iron & Metallurgical Eng., Hanlyo University) ;
  • Park, Choong-Nyeon (Dept. of Metallurgical Eng., Chonnam National University)
  • 발행 : 1999.09.15
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초록

Effects of alloy modification with the $Zr_{0.6}Ti_{0.4}V_{0.4}Ni_{1.2}Mn_{0.4}$ alloy for an electrode use have been investigated. For the alloy composition, a part of Mn was substituted by Co, Cr and Fe. The experimental results showed that Co accelerated activation of alloy, and Fe and Cr improved the discharge capacity. These results agree with P-C-T curves of each alloy. But substituting Fe for Mn showed the decrease of the discharge capacity when discharged at high rate (60mA, about 1C rate). Considering both the discharge capacity and the high rate discharge property, $Zr_{0.6}Ti_{0.4}V_{0.4}Ni_{1.2}Mn_{0.3}Cr_{0.1}$ alloy was found to be the best alloy among the alloys subjected to the test.

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