WO2020256395A3 - 리튬이차전지 음극재용 탄소-규소복합산화물 복합체 및 이의 제조방법 - Google Patents

리튬이차전지 음극재용 탄소-규소복합산화물 복합체 및 이의 제조방법 Download PDF

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WO2020256395A3
WO2020256395A3 PCT/KR2020/007824 KR2020007824W WO2020256395A3 WO 2020256395 A3 WO2020256395 A3 WO 2020256395A3 KR 2020007824 W KR2020007824 W KR 2020007824W WO 2020256395 A3 WO2020256395 A3 WO 2020256395A3
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carbon
preparation
secondary battery
composite oxide
method therefor
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PCT/KR2020/007824
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French (fr)
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WO2020256395A2 (ko
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오성민
임종찬
박정규
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대주전자재료 주식회사
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Publication of WO2020256395A3 publication Critical patent/WO2020256395A3/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
    • H01M4/362—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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • 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
    • 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
    • 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
    • H01M4/386—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
    • 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
    • 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
    • H01M4/62—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
    • H01M4/624—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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

본 발명은 리튬이차전지 음극재용 탄소-규소복합산화물 및 이의 제조방법에 관한 것으로, 보다 상세하게는 Si/SiO 2 원료분말혼합체와 금속 마그네슘을 기상 반응시킴으로써, 규소산화물(SiO X, 0<x≤2) 내에 규소 입자, MgSiO 3(enstatite) 및 Mg 2SiO 4(forsterite) 결정을 포함하는 표면이 탄소로 피복된 이차전지 음극재용 탄소-규소복합산화물 및 이의 제조방법에 관한 것이다.
PCT/KR2020/007824 2019-06-19 2020-06-17 리튬이차전지 음극재용 탄소-규소복합산화물 복합체 및 이의 제조방법 WO2020256395A2 (ko)

Applications Claiming Priority (2)

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KR10-2019-0073003 2019-06-19
KR1020190073003A KR102374350B1 (ko) 2019-06-19 2019-06-19 리튬 이차전지 음극재용 탄소-규소복합산화물 복합체 및 이의 제조방법

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WO2020256395A2 WO2020256395A2 (ko) 2020-12-24
WO2020256395A3 true WO2020256395A3 (ko) 2021-03-04

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US11862800B2 (en) * 2021-03-11 2024-01-02 Sk On Co., Ltd. Anode active material for lithium secondary battery, method of forming the same and lithium secondary battery including the same
CN113437271B (zh) * 2021-06-16 2022-04-12 溧阳天目先导电池材料科技有限公司 一种均匀改性的硅基复合材料及其制备方法和应用
JP2024504663A (ja) * 2021-08-13 2024-02-01 エルジー エナジー ソリューション リミテッド 負極活物質、これを含む負極、これを含む二次電池、および負極活物質の製造方法
CN115516665A (zh) * 2021-12-24 2022-12-23 宁德新能源科技有限公司 电化学装置和电子装置
CN114524436B (zh) * 2022-02-28 2023-11-17 长沙矿冶研究院有限责任公司 一种改性硅氧负极材料前驱体及制备方法
KR20230138936A (ko) 2022-03-24 2023-10-05 충남대학교산학협력단 리튬 이차전지용 실리콘계 음극, 이의 제조방법 및 이를 포함하는 리튬 이차전지
CN114975909B (zh) * 2022-04-06 2024-04-19 江苏博迁新材料股份有限公司 用作锂离子电池负极材料的碳包覆纳米硅粉的生产方法
WO2024101952A1 (ko) * 2022-11-11 2024-05-16 주식회사 엘지에너지솔루션 음극 활물질, 이를 포함하는 음극, 이를 포함하는 이차전지 및 음극 활물질의 제조방법
US20240170660A1 (en) * 2022-11-22 2024-05-23 Sk On Co., Ltd. Anode active material for lithium secondary battery and lithium secondary battery including the same

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KR20210146874A (ko) 2021-12-06
KR20200144855A (ko) 2020-12-30
WO2020256395A2 (ko) 2020-12-24
KR102452874B1 (ko) 2022-10-12
KR102374350B1 (ko) 2022-03-16

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