KR970707310A - 회토류금속-니켈계 수소흡장합금, 그 제조법 및 니켈수소 2차 전지용 음극(rare earth metal-nickel hydrogen storage alloy, method for producing the same, and anode for nickel-hydrogen rechargeable battery) - Google Patents

회토류금속-니켈계 수소흡장합금, 그 제조법 및 니켈수소 2차 전지용 음극(rare earth metal-nickel hydrogen storage alloy, method for producing the same, and anode for nickel-hydrogen rechargeable battery)

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Publication number
KR970707310A
KR970707310A KR1019970702821A KR19970702821A KR970707310A KR 970707310 A KR970707310 A KR 970707310A KR 1019970702821 A KR1019970702821 A KR 1019970702821A KR 19970702821 A KR19970702821 A KR 19970702821A KR 970707310 A KR970707310 A KR 970707310A
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nickel
earth metal
negative electrode
alloy
storage alloy
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KR1019970702821A
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English (en)
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KR100237322B1 (ko
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아키히토 가네코
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이노우에 유스케
산도쿠 긴조쿠 고교 가부시키가이샤
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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
    • H01M4/24—Electrodes for alkaline accumulators
    • H01M4/242—Hydrogen storage electrodes
    • 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
    • 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
    • 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

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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)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

(R1­xLx)(Ni1­yMy)z
(식중 R:La. Ce, Pr, Nd, L:Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Sc, Mg, Ca, M:Co, A1, Mn, Fe, Cu, Zr, Ti, Mo, Si, V, Cr, Hf, Ta, W, B, C를 나타낸다. 0.01 x 0.1, 0 y 0.5, 4.5 z 5.0))의 조성을 나타내고, 합금중의 결정입자의 C축과 수직으로 존재하는 역위상 경계가 C축방향으로 20nm당 2개이상, 20개미만의 결정을 10용량% 이상, 95용량%미만 함유하고, 화학식 1중의 L을역위상 영역에 그 첨가량의 60%이상, 95% 미만 배치한 희토류 금속- 니켈계수소흡장합금, 그 제조법, 니켈수소 2차 전지용 음극.
이 니켈수소 2차 전지용 음극 초기활성, 전지용량 및 전지수명 모두를 동시에 개선할 수 있다.

Description

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

Claims (9)

  1. 하기 화학식(1)
    (R1­xLx)(Ni1­yMy)z(1)
    (식중 R:La, Ce, Pr, Nd, 또는 이들의 혼합원소를 나타내고, L은:Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Sc, Mg, Ca 또는 이들의 혼합원소를 나타내고, M은 Co, A1, Mn, Fe, Cu, Zr, Ti, Mo, Si, V, Cr, Hf, Nb, Ta, W, B, C 또는 이들의 혼합원소를 나타내다. 0.01 x 0.1, 0 y 0.5, 4.5 z 5.0이다)로 표시되는 조성을 나타내고 합금중의 결정은 NaNi5형 단상구조이고, 동시에 합금중의 결정입자의 결정입자의 C축과 수직으로 존재하는 역위상 경계가 C축 방향으로 20nm당 2개이상, 20개 미만 포함되는 결정을 10용량% 이상, 95용량%미만 함유하고, 또 화학식(1)중의 L로 표시되는 원소를 상기 역위상 영역에 그 첨가량의 60% 이상, 95% 미만 배치한 희토류 금속- 니켈계 수소흡장합금.
  2. 제1항에 있어서, 상기 화학식 1중의 x가 0.05 x 0.09인 것을 특징으로 하는 희토류 금속- 니켈계수소흡장합금.
  3. 제1항에 희토류 금속- 니켈계수소흡장합금의 제조법으로서, 롤표면 거칠기가, 해당 롤표면의 10점 평균거칠기(Rz)가 30∼150㎛인 롤주조장치를 사용하여 하기 화학식(1)
    (R1­xLx)(Ni1­yMy)z(1)
    (식중 R:La, Ce, Pr, Nd, 또는 이들의 혼합원소를 나타내고, L은:Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Sc, Mg, Ca 또는 이들의 혼합원소를 나타내고, M은 Co, A1, Mn, Fe, Cu, Zr, Ti, Mo, Si, V, Cr, Hf, Nb, Ta, W, B, C 또는 이들의 혼합원소를 나타내다. 0.01 x 0.1, 0 y 0.5, 4.5 z 5.0이다)로 표시되는 조성의 합금 용융물을, 과냉도 50∼500℃, 냉각속도 1000∼10000℃/초의 냉각조건에서 01.∼2.0㎜의 두께로 균일하게 응고하게 합금을 얻는 공정, 및 얻어진 합금을 진공중 또는 비활성 분위기 중에서 온도 800∼1000℃, 01.∼12시간 가열하는 공정을 포함하는 희토류 금속- 니켈계 수소흡장합금의 제조법.
  4. 제3항에 있어서, 상기 롤 표면 거칠기가, 해당 롤 표면의 10점 평균거칠기(Rz)가 60∼129㎛인 것을 특징으로 하는 제조법
  5. 제3항에 있어서, 가열하는 공정의 온도가 850∼950℃인 것을 특징으로 하는 제조법.
  6. 제1항에 기재된 희토류 금속- 니켈계 수소흡장합금과 도전제를 음극 재료로서 포함하는 니켈수소 2차 전지용음극.
  7. 제6항에 있어서, 상기 희토류 금속- 니켈계수소흡장합금의 입도가 20∼100㎛이고, 상기 도전제의 입도가 1∼10㎛인 것을 특징으로 하는 니켈수소 2차 전지용 음극.
  8. 제6항에 있어서, 상기 희토류금속-니켈계 수소흡장합금의 함유비율이 음극재료 전량에 대하여 70∼95중량%이고, 상기 도전제의 함유비율이 음극재료 전량에 대하여 5∼20중량%인 것을 특징으로 하는 니켈수소 2차 전지용 음극.
  9. 제6항에 있어서, 상기 음극재료가 추가로 결착제를 함유하는 것을 특징으로 하는 니켈수소 2차 전지용 음극.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019970702821A 1995-08-31 1996-08-28 희토류금속-니켈계 수소흡장합금, 그 제조법 및 니켈수소 2차 전지용 음극 KR100237322B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP95-245166 1995-08-31
JP24516695 1995-08-31
PCT/JP1996/002400 WO1997008353A1 (fr) 1995-08-31 1996-08-28 Alliage a base de metal du groupe des terres rares/nickel absorbant l'hydrogene, son procede de fabrication et electrode negative pour batterie secondaire au nickel/hydrogene.

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KR970707310A true KR970707310A (ko) 1997-12-01
KR100237322B1 KR100237322B1 (ko) 2000-01-15

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US (1) US5964968A (ko)
EP (1) EP0790323B1 (ko)
JP (1) JP3993890B2 (ko)
KR (1) KR100237322B1 (ko)
CN (1) CN1072267C (ko)
AT (1) ATE208437T1 (ko)
DE (1) DE69616741T2 (ko)
WO (1) WO1997008353A1 (ko)

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US5629000A (en) * 1994-11-25 1997-05-13 Sanyo Electric Co., Ltd. Hydrogen-absorbing alloy electrode for metal hydride alkaline batteries and process for producing the same
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CN1072267C (zh) 2001-10-03
KR100237322B1 (ko) 2000-01-15
EP0790323A4 (en) 1998-10-14
DE69616741T2 (de) 2002-05-08
ATE208437T1 (de) 2001-11-15
EP0790323B1 (en) 2001-11-07
WO1997008353A1 (fr) 1997-03-06
US5964968A (en) 1999-10-12
DE69616741D1 (de) 2001-12-13
EP0790323A1 (en) 1997-08-20
JP3993890B2 (ja) 2007-10-17
CN1165542A (zh) 1997-11-19

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