WO2021125711A3 - 리튬 이차 전지용 음극 활물질의 제조 방법, 이 방법으로 제조된 리튬 이차 전지용 음극 활물질, 및 이 음극 활물질을 포함하는 리튬 이차 전지 - Google Patents

리튬 이차 전지용 음극 활물질의 제조 방법, 이 방법으로 제조된 리튬 이차 전지용 음극 활물질, 및 이 음극 활물질을 포함하는 리튬 이차 전지 Download PDF

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WO2021125711A3
WO2021125711A3 PCT/KR2020/018192 KR2020018192W WO2021125711A3 WO 2021125711 A3 WO2021125711 A3 WO 2021125711A3 KR 2020018192 W KR2020018192 W KR 2020018192W WO 2021125711 A3 WO2021125711 A3 WO 2021125711A3
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WIPO (PCT)
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active material
anode active
secondary battery
lithium secondary
manufacturing
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PCT/KR2020/018192
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English (en)
French (fr)
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WO2021125711A2 (ko
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김용중
조문규
유승재
우정규
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주식회사 포스코
재단법인 포항산업과학연구원
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Priority to CN202080087810.9A priority Critical patent/CN114930575A/zh
Priority to US17/787,101 priority patent/US20230047302A1/en
Priority to JP2022536630A priority patent/JP2023506829A/ja
Priority to EP20903945.2A priority patent/EP4080610A4/en
Publication of WO2021125711A2 publication Critical patent/WO2021125711A2/ko
Publication of WO2021125711A3 publication Critical patent/WO2021125711A3/ko

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    • H—ELECTRICITY
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    • H01M4/36—Selection of substances as active materials, active masses, active liquids
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    • 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
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    • H01M4/04—Processes of manufacture in general
    • H01M4/0471—Processes of manufacture in general involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
    • 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
    • H01M4/38—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
    • 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
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    • 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
    • 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
    • C01B32/20—Graphite
    • C01B32/21—After-treatment
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/02—Silicon
    • C01B33/021—Preparation
    • C—CHEMISTRY; METALLURGY
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    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
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    • C01P2004/82—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases
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    • 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
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    • H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
    • H01M2004/027—Negative electrodes
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  • Chemical & Material Sciences (AREA)
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  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Silicon Compounds (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

리튬 이차 전지용 음극 활물질의 제조 방법, 이의 방법으로 제조된 리튬 이차 전지용 음극 활물질 및 이를 포함하는 리튬 이차 전지에 관한 것으로서, 상기 리튬 이차 전지용 음극 활물질의 제조 방법은 Si을 포함하는 음극 활물질 전구체를 조(粗)타르(crude tar) 또는 소프트 피치로 코팅하는 단계 및 얻어진 코팅 생성물을 열처리하는 단계를 포함하는 리튬 이차 전지용 음극 활물질의 제조 방법으로서, 상기 조타르는 증류 공정으로 제거될 수 있는 저분자량 성분을 20 중량% 이하의 함량으로 포함하는 것이다.
PCT/KR2020/018192 2019-12-20 2020-12-11 리튬 이차 전지용 음극 활물질의 제조 방법, 이 방법으로 제조된 리튬 이차 전지용 음극 활물질, 및 이 음극 활물질을 포함하는 리튬 이차 전지 WO2021125711A2 (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN202080087810.9A CN114930575A (zh) 2019-12-20 2020-12-11 锂二次电池用负极活性物质的制备方法、通过该方法制备的锂二次电池用负极活性物质及包括该负极活性物质的锂二次电池
US17/787,101 US20230047302A1 (en) 2019-12-20 2020-12-11 Method for manufacturing anode active material for lithium secondary battery, anode active material, manufactured by same method, for lithium secondary battery, and lithium secondary battery comprising anode active material
JP2022536630A JP2023506829A (ja) 2019-12-20 2020-12-11 リチウム二次電池用負極活物質の製造方法、この方法で製造されたリチウム二次電池用負極活物質、およびこの負極活物質を含むリチウム二次電池
EP20903945.2A EP4080610A4 (en) 2019-12-20 2020-12-11 METHOD OF MANUFACTURE OF ANODE MATERIAL FOR LITHIUM SECONDARY BATTERY, ACTIVE ANODE MATERIAL FOR LITHIUM SECONDARY BATTERY MANUFACTURED BY METHOD, AND LITHIUM SECONDARY BATTERY WITH THE ACTIVE ANODE MATERIAL

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2019-0171448 2019-12-20
KR1020190171448A KR102325754B1 (ko) 2019-12-20 2019-12-20 리튬 이차 전지용 음극 활물질의 제조 방법, 이 방법으로 제조된 리튬 이차 전지용 음극 활물질, 및 이 음극 활물질을 포함하는 리튬 이차 전지

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WO2021125711A2 WO2021125711A2 (ko) 2021-06-24
WO2021125711A3 true WO2021125711A3 (ko) 2021-08-05

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PCT/KR2020/018192 WO2021125711A2 (ko) 2019-12-20 2020-12-11 리튬 이차 전지용 음극 활물질의 제조 방법, 이 방법으로 제조된 리튬 이차 전지용 음극 활물질, 및 이 음극 활물질을 포함하는 리튬 이차 전지

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US (1) US20230047302A1 (ko)
EP (1) EP4080610A4 (ko)
JP (1) JP2023506829A (ko)
KR (1) KR102325754B1 (ko)
CN (1) CN114930575A (ko)
WO (1) WO2021125711A2 (ko)

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KR20180075106A (ko) * 2016-12-26 2018-07-04 주식회사 엘지화학 도전 조성물, 및 이를 포함하는 양극 슬러리

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EP4080610A4 (en) 2023-06-21
US20230047302A1 (en) 2023-02-16
KR20210080656A (ko) 2021-07-01
JP2023506829A (ja) 2023-02-20
KR102325754B1 (ko) 2021-11-12
WO2021125711A2 (ko) 2021-06-24
EP4080610A2 (en) 2022-10-26
CN114930575A (zh) 2022-08-19

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