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WO2019035669A3 - 리튬 이차전지용 음극 및 이를 포함하는 리튬 이차전지 - Google Patents

리튬 이차전지용 음극 및 이를 포함하는 리튬 이차전지 Download PDF

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Publication number
WO2019035669A3
WO2019035669A3 PCT/KR2018/009420 KR2018009420W WO2019035669A3 WO 2019035669 A3 WO2019035669 A3 WO 2019035669A3 KR 2018009420 W KR2018009420 W KR 2018009420W WO 2019035669 A3 WO2019035669 A3 WO 2019035669A3
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Prior art keywords
negative electrode
secondary battery
lithium secondary
carbon
active material
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Ceased
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PCT/KR2018/009420
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English (en)
French (fr)
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WO2019035669A2 (ko
Inventor
이수민
이용주
김은경
신선영
오일근
조래환
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LG Chem Ltd
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LG Chem Ltd
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Application filed by LG Chem Ltd filed Critical LG Chem Ltd
Priority to EP18845787.3A priority Critical patent/EP3654423B1/en
Priority to CN201880053565.2A priority patent/CN111033824B/zh
Priority to PL18845787T priority patent/PL3654423T3/pl
Publication of WO2019035669A2 publication Critical patent/WO2019035669A2/ko
Publication of WO2019035669A3 publication Critical patent/WO2019035669A3/ko
Priority to US16/787,535 priority patent/US11283062B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H01M4/13—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
    • 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
    • H01M4/13—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
    • H01M4/133—Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • H—ELECTRICITY
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    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/134—Electrodes based on metals, Si 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
    • H01M4/362—Composites
    • H01M4/366—Composites as layered products
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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    • 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
    • H01M4/386—Silicon or alloys based on silicon
    • 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
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/483—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides for non-aqueous cells
    • 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
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    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
    • H—ELECTRICITY
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    • 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
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    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
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    • H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
    • H01M2004/027—Negative electrodes
    • 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)
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  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

음극 집전체; 상기 음극 집전체의 적어도 일면에 위치되고, 제1 탄소계 음극 활물질, 제1 고분자 바인더 및 제1 도전재를 포함하는 제1 음극 합제층; 상기 제1 음극 합제층의 상면에 위치되고, 규소계 음극 활물질, 제2 고분자 바인더 및 제2 도전재를 포함하는 제2 음극 합제층; 및 상기 제2 음극 합제층의 상면에 위치되고, 제2 탄소계 음극 활물질, 제3 고분자 바인더 및 제3 도전재를 포함하는 제3 음극 합제층;을 포함하고, 상기 제1 탄소계 음극 활물질이 구형 형상 및 산화 처리된 표면부를 가지고, 상기 제2 탄소계 음극 활물질이 플레이크형 형상 및 카본 코팅 처리된 표면부를 가지는 리튬 이차전지용 음극, 및 이를 구비하는 리튬 이차전지가 제시된다.
PCT/KR2018/009420 2017-08-18 2018-08-16 리튬 이차전지용 음극 및 이를 포함하는 리튬 이차전지 Ceased WO2019035669A2 (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP18845787.3A EP3654423B1 (en) 2017-08-18 2018-08-16 Negative electrode for lithium secondary battery and lithium secondary battery comprising same
CN201880053565.2A CN111033824B (zh) 2017-08-18 2018-08-16 锂二次电池用负极和包含其的锂二次电池
PL18845787T PL3654423T3 (pl) 2017-08-18 2018-08-16 Elektroda ujemna dla akumulatora litowego i zawierający ją akumulator litowy
US16/787,535 US11283062B2 (en) 2017-08-18 2020-02-11 Negative electrode for lithium secondary battery and lithium secondary battery comprising same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20170105004 2017-08-18
KR10-2017-0105004 2017-08-18

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US16/787,535 Continuation US11283062B2 (en) 2017-08-18 2020-02-11 Negative electrode for lithium secondary battery and lithium secondary battery comprising same

Publications (2)

Publication Number Publication Date
WO2019035669A2 WO2019035669A2 (ko) 2019-02-21
WO2019035669A3 true WO2019035669A3 (ko) 2019-04-11

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PCT/KR2018/009420 Ceased WO2019035669A2 (ko) 2017-08-18 2018-08-16 리튬 이차전지용 음극 및 이를 포함하는 리튬 이차전지

Country Status (6)

Country Link
US (1) US11283062B2 (ko)
EP (1) EP3654423B1 (ko)
KR (1) KR102255492B1 (ko)
CN (1) CN111033824B (ko)
PL (1) PL3654423T3 (ko)
WO (1) WO2019035669A2 (ko)

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WO2019035669A2 (ko) 2019-02-21
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