KR950010159A - 리튬 2차 전지 - Google Patents

리튬 2차 전지 Download PDF

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KR950010159A
KR950010159A KR1019940024677A KR19940024677A KR950010159A KR 950010159 A KR950010159 A KR 950010159A KR 1019940024677 A KR1019940024677 A KR 1019940024677A KR 19940024677 A KR19940024677 A KR 19940024677A KR 950010159 A KR950010159 A KR 950010159A
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electrode
secondary battery
powder
lithium secondary
composite
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KR1019940024677A
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KR100330633B1 (ko
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도모아리 사토
다츠오 다테노
야스히토 후루카와
도시히사 데구치
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고사이 아키오
스미토모카가쿠코교 가부시키가이샤
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Priority claimed from JP6088294A external-priority patent/JPH07296802A/ja
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Publication of KR100330633B1 publication Critical patent/KR100330633B1/ko

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    • 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
    • H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
    • 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/133—Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • 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
    • H01M4/04—Processes of manufacture in general
    • H01M4/0402—Methods of deposition of the material
    • H01M4/0404—Methods of deposition of the material by coating on electrode collectors
    • 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
    • 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • 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
    • H01M4/362—Composites
    • H01M4/364—Composites as mixtures
    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/621—Binders
    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/624—Electric conductive fillers
    • H01M4/625—Carbon or graphite
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49108—Electric battery cell making
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49108—Electric battery cell making
    • Y10T29/49115—Electric battery cell making including coating or impregnating

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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)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Composite Materials (AREA)
  • Secondary Cells (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

본 발명은, 리튬을 충전 방전할 수 있는 양극과 음극 및 비수성 전해액을 구비한 리튬 2차 전지로서, 양극 또는 음극의 적어도 하나가(A)탄소분말과 결합제를 구성 성분으로 하는 복합재이며 구성 성분이 실란 커플링제로 처리된 복합재, (B)흑연 분말 70내지 99중량 %와 유사 흑연질 카본 블랙 30내지 1중량 %를 함유하는 혼합 탄소 분말과 결합제와의 복합재 및 (C)리튬과 전이금속의 복합 산화물 분말, 전기 전도재 분말 및 결합제를 구성성분으로 하는 복합재이며 구성 성분이 실란 커플링제로 처리된 복합재 중의 하나를 함유하는 전극임을 특징으로 하는 리튬 2차 전지에 관한 것이다.
전극의 초기 충전 방전시에 불가역 용량을 작게 하여 리튬의 이용 효율을 향상시키고 초기 충전 방전 특성과 사이클성이 우수한 리튬 2차 전지용 전극 및 이를 사용하는 리튬 2차 전지를 제공한다.

Description

리튬 2차 전지
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (10)

  1. 리튬을 충전 방전할 수 있는 양극과 음극 및 비수성 전해액을 구비한 리튬 2차 전지로서, 양극 또는 음극의 적어도 하나가, (A)탄소 분말과 결합제를 구성 성분으로 하는 복합재이며 구성 성분이 실란 커플링제로 처리된 복합재, (B)흑연 분말 70내지 99중량 %와 유사 흑연질 카본 블랙 30내지 1중량 %를 함유하는 혼합 탄소 분말과 결합제와의 복합재 및 (C)리튬과 전이금속의 복합 산화물 분말, 전기 전도재 분말 및 결합제를 구성성분으로 하는 복합재이며 구성 성분이 실란 커플링제로 처리된 복합재 중의 하나를 함유하는 전극임을 특징으로 하는 리튬 2차 전지
  2. 제1항에 있어서, (A) 의 탄소 분말이 천연 흑연 분말 또는 인조 흑연 분말을 단일 성분 또는 주성분으로 하는 탄소 분말임을 특징으로 하는 리튬 2차 전지.
  3. 제1항에 있어서, (B)의 흑연 분말이 천연 흑연분말 또는 인조 흑연분말인 동시에 흑연질 카본 블랙이, X선 회절의 격자면 간격(d2)이 3.38 내지 3.46Å이며 결정자 두께 (Lc)가 50내지 150Å이고 진비중이 1.9 내지 2.1이고 평균 1차 입자 직경이 10내지 100nm인 탄소 분말임을 특징으로 하는 리튬 2차 전지.
  4. 제1항에 있어서, (B)의 혼합 탄소 분말과 결합제와의 복합재가 실란 커플링제로 처리됨을 특징으로 하는 리튬2차 전지.
  5. 음극이 제1항에 기재된 (A)또는(B)를 함유하는 전극임을 특징으로 하는 리튬 2차 전지.
  6. 양극이 제1항에 기재된 (C)를 함유하는 전극임을 특징으로 하는 리튬 2차 전지.
  7. 음극이 제1항에 기재된 (A)또는 (B)를 함유하는 전극이고, 양극이 제1항에 기재된 (C)를 함유하는 전극임을 특징으로 하는 리튬 2차 전지.
  8. 리튬을 충전 방전할 수 있는 전극층을 집전체 위에 형성하는 리튬 2차 전지용 시트상 전극의 제조방법에 있어서, 전극층을 형성하기 전에, 집전체 표면에 실란 커플링제를 도포하고, 건조시키는 공정을 포함함을 특징으로 하는 리튬 2차 전지용 시트상 전극의 제조방법.
  9. 리튬을 충전 방전 할 수 있는 양극과 음극 및 비수성 전해액을 구비한 리튬 2차 전지에 있어서, 양극 또는 음극의 적어도 하나가 제8항에 따르는 제조방법으로 수득한 시트상 전극임을 특징으로 하는 리튬 2차 전지.
  10. 제8항에 있어서, 전극층이, (A)탄소 분말과 결합제를 구성 성분으로 하는 복합재이며 구성 성분이 실란 커플링제로 처리된 복합재, (B)흑연 분말 70내지 99중량 %와 유사 흑연질 카본 블랙 30내지 1중량 %를 함유하는 혼합 탄소 분말과 결합제와의 복합재 및 (C)리튬과 전이금속의 복합 산화물 분말, 전기 전도재 분말 및 결합제를 구성성분으로 하는 복합재이며 구성 성분이 실란 커플링제로 처리된 복합재 중의 하나를 함유하는 전극으로 이루어짐을 특징으로 하는 시트상 전극의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940024677A 1993-09-30 1994-09-29 리튬2차전지 KR100330633B1 (ko)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP24481993 1993-09-30
JP93-244819 1993-09-30
JP94-008351 1994-01-28
JP00835194A JP3367060B2 (ja) 1993-09-30 1994-01-28 リチウム二次電池用負極
JP94-013516 1994-02-07
JP1351694 1994-02-07
JP6088294A JPH07296802A (ja) 1994-04-26 1994-04-26 リチウム二次電池用電極の製造方法とリチウム二次電池
JP94-088294 1994-04-26

Publications (2)

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KR950010159A true KR950010159A (ko) 1995-04-26
KR100330633B1 KR100330633B1 (ko) 2002-10-25

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Country Status (6)

Country Link
US (1) US5571638A (ko)
EP (1) EP0652602B1 (ko)
KR (1) KR100330633B1 (ko)
CN (1) CN1074170C (ko)
CA (1) CA2133277A1 (ko)
DE (1) DE69430941T2 (ko)

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KR100735684B1 (ko) * 2005-12-28 2007-07-04 한국생산기술연구원 밀폐상태에서 겔화가 가능한 겔타입 전해액과 그 제조방법

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US5571638A (en) 1996-11-05
CN1074170C (zh) 2001-10-31
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DE69430941T2 (de) 2003-02-20
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CA2133277A1 (en) 1995-03-31

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