KR960009255A - 2차 전지용 탄소질 전극재료 - Google Patents

2차 전지용 탄소질 전극재료 Download PDF

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Publication number
KR960009255A
KR960009255A KR1019950026129A KR19950026129A KR960009255A KR 960009255 A KR960009255 A KR 960009255A KR 1019950026129 A KR1019950026129 A KR 1019950026129A KR 19950026129 A KR19950026129 A KR 19950026129A KR 960009255 A KR960009255 A KR 960009255A
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South Korea
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carbonaceous
electrode
electrode material
pitch
secondary battery
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KR1019950026129A
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KR0169170B1 (ko
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나오히로 소노베
지로 마스코
다카오 이와사키
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고타마 쥰이치로
구레하 가가쿠 고교 가부시키가이샤
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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
    • H01M4/64—Carriers or 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
    • H01M4/133—Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/10—Carbon fluorides, e.g. [CF]nor [C2F]n
    • 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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • 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)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

리륨 등의 셀활성물질의 도우프 및 탈도우브 용량이 개선되어 비수용매계 2차 전지에 적합하게 사용되는 탄소질 전극은 특정한 미세섬유구조의 탄소질 재료로 구성된다.
탄소질 재료는 X선 화절법에 따른 (002)면의 평균층면 간격이 0.365㎚이상이며, 부탄올을 치환매체로 사용하여 측정한 밀도 (ρB)에 대한 헬륨가스를 치환매체로 사용하여 측정한 밀도(ρH)의 비(ρB/ρH) 1.15이상인 것을 특징으로 한다.

Description

2차 전지용 탄소질 전극재료
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (10)

  1. 비수용매계 2차 전지용 탄소질 전극재료에서, 탄소질 재료는 X선 회절법에 따른 (002)면의 평균층면 간격이 0.365㎚이상이며, 부탄올을 치환매체로 사용하여 측정한 밀도(ρB)에 대한 헬륨가스를 지환매체로 사용하여 측정한 밀도(ρH)의 비(ρB/ρH)가 1.15이상인 것을 특징으로 하는 탄소질 전극재료.
  2. 제1항에 있어서, 탄소질 재료는 수소/탄소의 원자비 (H/C)도 0.1이하를 더욱 나타내는 것을 특징으로 하는 탄소질 전극재료.
  3. 제1항에 있어서, 밀도비율(ρH/ρH)이 1.20이상인 것은 특징으로 하는 탄소질 전극재료.
  4. 제1항에 있어서, 밀도(ρB)가 1.70ｇ/㎤이하인 것은 특징으로 하는 탄소질 전극재료.
  5. 제1항에 있어서, 상기 탄소질 재료가 X선 회절법에 의하여 측정된 것으로 C축 방향의 결정자의 크기가 15㎚이하인 것을 특징으로 하는 탄소질 전극재료.
  6. 석유계 또는 석탄계의 피치에 대하여 첨가제로서 비점 200℃이상의 2 내지 3의 방향환의 방향즉 화합물을 혼합한후 피치 성형체를 성형하는 단계와, 피치에 대하여 저용해도를 나타내며 첨가제에 대하여 고용해도를 나타내는 용제이고, 그 피치 성형체로부터 첨가제를 추출하여 다공성 피치 성형체를 잔존시키는 단계와, 다공성 피치 성형체를 산화시키는 단계와, 산화된 다공성 피치 산화물을 10KP에이이하의 감압하에서 900~1500℃의 온도로 소성하는 단계를 포함한 것을 특징으로 하는 비수용매계 2차 전지용 탄소질 전극재료의 제조방법.
  7. 제6항에 있어서, 상기 다공성 피치 성형체제가 산호를 포함한 가스로 산화되는 것을 특징으로 하는 탄소질 전극재료의 제조방법.
  8. 도전성 집전재와 그 도전성 집전재의 일표면 이상에 배치된 복합 전극층을 포함하며 ;상기 복합 전극층은 입자형태의 청구항 제1항 내지 제5항중 어느 한 항에 따른 탄소질 전극재료와 결합제를 포함한 것을 특징으로 하는 비수용매계 2차 전지용 전극구조.
  9. 양극, 음극, 세퍼레이터와 양극 및 음극 사이에 배치된 비수용성 전해액을 포함하며; 상기 양극 및 음극중 적어도 하나는 청구항 제8항에 따른 전극구조를 포함한 것을 특징으로 하는 비수용매계 2차 전지.
  10. 제9항에 있어서, 전극구조가 음극으로 구성되는 것을 특징으로 하는 2차 전지.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950026129A 1994-08-23 1995-08-23 2차 전지용 탄소질 전극재료 KR0169170B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP21963694 1994-08-23
JP94-219636 1994-08-23

Publications (2)

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KR960009255A true KR960009255A (ko) 1996-03-22
KR0169170B1 KR0169170B1 (ko) 1999-01-15

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US (1) US5741472A (ko)
EP (1) EP0700106A3 (ko)
KR (1) KR0169170B1 (ko)
CA (1) CA2156675C (ko)

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KR100333112B1 (ko) * 1996-12-25 2002-06-20 구보 미츠오 전원장치및방전등점등장치

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JP4104187B2 (ja) * 1997-02-06 2008-06-18 株式会社クレハ 二次電池電極用炭素質材料
JP4187804B2 (ja) * 1997-04-03 2008-11-26 ソニー株式会社 非水溶媒系二次電池の電極用炭素質材料及びその製造方法、並びに非水溶媒系二次電池
FR2770837B1 (fr) * 1997-11-07 2000-01-28 Centre Nat Etd Spatiales Produit carbone riche en lithium utilisable comme electrode negative dans un accumulateur au lithium
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JP4924966B2 (ja) * 2005-10-17 2012-04-25 富士重工業株式会社 リチウムイオンキャパシタ
US20090035661A1 (en) 2007-08-01 2009-02-05 Jeffrey Swoyer Synthesis of cathode active materials
US20090148377A1 (en) 2007-12-11 2009-06-11 Moshage Ralph E Process For Producing Electrode Active Material For Lithium Ion Cell
TWI440248B (zh) * 2009-01-21 2014-06-01 Kureha Corp Production method of negative electrode material for nonaqueous electrolyte secondary battery
WO2012121407A1 (ja) * 2011-03-10 2012-09-13 株式会社クレハ 非水電解質二次電池負極用炭素質材料
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JP6573549B2 (ja) * 2013-02-19 2019-09-11 株式会社クレハ 非水電解質二次電池負極用炭素質材料
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CN109148883A (zh) * 2017-09-26 2019-01-04 中国科学院物理研究所 基于沥青的钠离子电池负极材料及其制备方法和应用

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Publication number Priority date Publication date Assignee Title
KR100333112B1 (ko) * 1996-12-25 2002-06-20 구보 미츠오 전원장치및방전등점등장치

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US5741472A (en) 1998-04-21
CA2156675C (en) 1999-03-09
CA2156675A1 (en) 1996-02-24
EP0700106A2 (en) 1996-03-06
EP0700106A3 (en) 1997-04-09
KR0169170B1 (ko) 1999-01-15

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