KR970705652A - 희토류금속-니켈계 수소흡장합금 및 그 제조법, 및 니켈수소 2차전지용 음극(rare earth metal-nickel hydrogen storage alloy, process for producing the same, and anode for nickel-hydrogen rechargeable battery) - Google Patents

희토류금속-니켈계 수소흡장합금 및 그 제조법, 및 니켈수소 2차전지용 음극(rare earth metal-nickel hydrogen storage alloy, process for producing the same, and anode for nickel-hydrogen rechargeable battery)

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Publication number
KR970705652A
KR970705652A KR1019970701526A KR19970701526A KR970705652A KR 970705652 A KR970705652 A KR 970705652A KR 1019970701526 A KR1019970701526 A KR 1019970701526A KR 19970701526 A KR19970701526 A KR 19970701526A KR 970705652 A KR970705652 A KR 970705652A
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South Korea
Prior art keywords
nickel
storage alloy
hydrogen storage
hydrogen
earth metal
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KR1019970701526A
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English (en)
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KR100239742B1 (ko
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아키히토 가네코
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이노우에 유스케
산도쿠 긴조쿠 고교 가부시키가이샤
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Publication of KR970705652A publication Critical patent/KR970705652A/ko
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
    • H01M4/383—Hydrogen absorbing alloys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S420/00—Alloys or metallic compositions
    • Y10S420/90—Hydrogen storage

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

하기 화학식(1)
(R1-xLx)(Nil-yMy)z(1)
(R:La, Ce, Pr, Nd, L : Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Sc, Mg, Ca, M : Co, Al, Mn, Fe, Cu, Zr, Ti, Mo,Si, V, Cr, Nb, Hf, Ta, W, B, C, 0.05≤x≤0.4, 0≤y≤0.5, 3.0≤z＜4.5)로 표시되는 조성을 나타내고, 합금중의 결정입자의 C축과 수직으로 존재하는 역위상 경계가 C축방향으로 20nm 당 5개 이상, 25개 미만 함유되는 결정을 30용량% 이상, 95용량% 미만 함유하고, 또한 화학식 (1)중에서 L로 표시된 원소를 역위상 영역에 그 첨가량의 60%이상, 95% 미만 배치한 희토류 금속-니켈계 수소흡장합금 및 그 제조법.

Description

희토류금속-니켈계 수소흡장합금 및 그 제조법 및 니켈수소 2차전지용 음극(RARE EARTH METAL-NICKEL HYDROGEN STORAGE ALLOY, PROCESS FOR PRODUCING THE SAME, AND ANODE FOR NICKEL-HYDROGEN RECHARGEABLE BATTERY)
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (9)

  1. 하기 화학식(1)
    (R1-xLx)(Ni1-yMy)z(1)
    (식 중 R은, La, Ce, Pr, Nd, 또는 이것들의 혼합원소를 나타내고, L은 Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Sc, Mg, Ca, 또는 이것들의 혼합원소를 나타내며, M은 Co, Al, Mn, Fe, Cu, Zr, Ti, Mo, Si, V, Cr, Nb, Hf, Ta, W, B, C, 또는 이것들의 혼합원소를 나타낸다. x, y 및 z는 0.05≤x≤0.4, 0≤y≤0.5, 3.0≤z4.5이다.)로 표시되는 조성을 나타내고, 합금중의 결정입자의 C축과 수직으로 존재하는 역위상 경계가C축방향으로 20nm 당 5개 이상, 25개 미만 함유되는 결정을 30용량% 이상, 95용량% 미만 함유하고,또한 화학식 (1)중의 L로 표시된 원소를 역위상영역에 그 첨가량의 60% 이상, 95% 미만 배치한 것을 특징으로 하는 회토류금속-니켈계 수소흡장합금.
  2. 제1항에 있어서, 상기 화학식 (1)에서, x 및 z가 0.1≤x≤0.4, 또한 3.0≤z3.5인 것을 특징으로 하는 수소흡장합금.
  3. 제1항에 있어서, 상기 화학식 (1)에서 x 및 z가 0.1≤x≤0.3, 또한 3.5≤z4.0인 것을 특징으로 하는 수소흡장합금.
  4. 제1항에 있어서, 상기 화학식 (1)에서 x 및 z가 0.05≤x≤0.25, 또한 4.0≤z4.5인 것을 특징으로 하는 수소흡장합금.
  5. 제1항 기재의 회토류금속-니켈계 수소흡장합금의 제조법에 있어서, 로울러 표면 거칠기가 그 로울러 표면 요철의 평균최대높이(Rmax)30~150㎛인 로울러주조장치를 사용하고, 하기 화학식 (1)
    (R1-xLx)(Ni1-yMy)z(1)
    (식 중 R는 La, Ce, Pr, Nd, 또는 이것들의 혼합원소를 나타내고, L은 Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Sc, Mg, Ca, 또는 이것들의 혼합원소를 나타내며, M은 Co, Al, Mn,Fe, Cu, Zr, Ti, Mo, Si, V, Cr, Nb, Hf, Ta, W, B, C, 또는 이것들의 혼합원소를 나타낸다. x, y 및 z는 0.05≤x≤0.4, 또한 0≤y0.5, 3.0≤z4.5이다.)로 표시되는 조성의 합금용융물을, 과냉도 50~500℃, 냉각속도 1000~10000℃/초의 냉각조건으로, 0.1~2.0ππ의 두께로 균일하게 응고시킨 후, 얻어진 합금을 진공중 또는 불활성 분위기중에서, 온도 750~950℃, 0.1~12시간 가열하는 것을 특징으로 하는 회토류금속-니켈계 수소흡장합금의 제조법.
  6. 제5항에 있어서, 상기 평균최대높이(Rmax)가 60~120㎛인 것을 특징으로 하는 제조법.
  7. 제1항 기재의 회토류금속-니켈계 수소흡장합금과 도전제를 음극재료로서 함유하는 것을 특징으로 하는 니켈수소 2차전지용 음극.
  8. 제7항에 있어서, 상기 회토류금속-니켈계 수소흡장합금이 입도 20~100㎛의 분말인 것을 특징으로 하는 니켈수소 2차전지용 음극.
  9. 제7항에 있어서, 상기 음극재료중의 상기 회토류금속-니켈계 수소흡장합금의 함유비율이 70~95중량%이고, 또한 도전제의 함유비율이 5~20중량%인 것을 특징으로 하는 니켈수소 2차전지용 음극.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019970701526A 1995-07-10 1996-07-09 희토류금속-니켈계 수소흡장합금 및 그 제조법, 및 니켈수소 2차전지용 음극 KR100239742B1 (ko)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP19572395 1995-07-10
JP95-195724 1995-07-10
JP95-195722 1995-07-10
JP19572295 1995-07-10
JP19572495 1995-07-10
JP95-195723 1995-07-10
PCT/JP1996/001900 WO1997003213A1 (en) 1995-07-10 1996-07-09 Rare earth metal-nickel-base hydrogen absorbing alloy, process for preparing the same, and negative electrode for nickel-hydrogen secondary battery

Publications (2)

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KR970705652A true KR970705652A (ko) 1997-10-09
KR100239742B1 KR100239742B1 (ko) 2000-01-15

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US (1) US5840166A (ko)
EP (1) EP0783040B1 (ko)
JP (1) JP3688716B2 (ko)
KR (1) KR100239742B1 (ko)
CN (1) CN1072268C (ko)
AT (1) ATE208436T1 (ko)
DE (1) DE69616733T2 (ko)
WO (1) WO1997003213A1 (ko)

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DE69616733D1 (de) 2001-12-13
EP0783040A4 (en) 1998-10-14
DE69616733T2 (de) 2002-05-08
ATE208436T1 (de) 2001-11-15
US5840166A (en) 1998-11-24
CN1072268C (zh) 2001-10-03
CN1166863A (zh) 1997-12-03
EP0783040A1 (en) 1997-07-09
EP0783040B1 (en) 2001-11-07
JP3688716B2 (ja) 2005-08-31
KR100239742B1 (ko) 2000-01-15

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