한국수소및신에너지학회논문집 (Transactions of the Korean hydrogen and new energy society)

  • 제17권4호
  • /
  • Pages.418-424
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  • 2006
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  • 1738-7264(pISSN)
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  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
권호 표지

Ni-MH 전극용 $AB_2$계 수소저장합금의 볼밀링 처리에 의한 표면개질 연구

Surface Modification of $AB_2$ Type Hydrogen Storage Alloys by Ball Milling for Ni-MH Battery

  • 문홍기 (전남대학교 신소재공학부) ;
  • 박충년 (전남대학교 신소재공학부) ;
  • 유정현 (전남대학교 신소재공학부) ;
  • 박찬진 (전남대학교 신소재공학부) ;
  • 최전 (한려대학교 신소재공학부)
  • Moon, Hong-Gi (Dept. of Materials Sci. & Eng., Chonnam National University) ;
  • Park, Choong-Nyeon (Dept. of Materials Sci. & Eng., Chonnam National University) ;
  • Yoo, Joung-Hyun (Dept. of Materials Sci. & Eng., Chonnam National University) ;
  • Park, Chan-Jin (Dept. of Materials Sci. & Eng., Chonnam National University) ;
  • Choi, Jeon (Dept. of Advanced materials Eng., Hanlyo University)
  • 발행 : 2006.12.15
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초록

In order to improve the activation properties of the $AB_2$ type hydrogen storage alloys for Ni-MH battery, the alloy surface was modified by employing high energy ball milling. The $Zr_{0.54}Ti_{0.45}V_{0.54}Ni_{0.87}Cr_{0.15}Co_{0.21}Mn_{0.24}$ alloy powder was ball milled for various period by using the high energy ball mill. As the ball milling time increased, activation of the $AB_2$ type composite powder electrodes were enhanced regardless of additives. When the ball milling time was small discharge capacities of the $AB_2$ type composite powder electrodes increased with the milling time. On the other hand for large milling time it decreased with increasing milling time. The maximum discharge capacity was obtained by ball milling for 3-4 min.

키워드

참고문헌

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