WO2012036385A3 - Anode active material, nonaqueous lithium secondary battery containing same, and preparation method thereof - Google Patents

Anode active material, nonaqueous lithium secondary battery containing same, and preparation method thereof Download PDF

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Publication number
WO2012036385A3
WO2012036385A3 PCT/KR2011/006110 KR2011006110W WO2012036385A3 WO 2012036385 A3 WO2012036385 A3 WO 2012036385A3 KR 2011006110 W KR2011006110 W KR 2011006110W WO 2012036385 A3 WO2012036385 A3 WO 2012036385A3
Authority
WO
WIPO (PCT)
Prior art keywords
secondary battery
lithium secondary
anode active
active material
carbonaceous material
Prior art date
Application number
PCT/KR2011/006110
Other languages
French (fr)
Korean (ko)
Other versions
WO2012036385A2 (en
Inventor
김영준
조용남
박민식
Original Assignee
전자부품연구원
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020110077357A external-priority patent/KR101316638B1/en
Application filed by 전자부품연구원 filed Critical 전자부품연구원
Priority to CN201180044303.8A priority Critical patent/CN103140968B/en
Priority to US13/822,383 priority patent/US20130177815A1/en
Publication of WO2012036385A2 publication Critical patent/WO2012036385A2/en
Publication of WO2012036385A3 publication Critical patent/WO2012036385A3/en

Links

Classifications

    • 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
    • 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
    • H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
    • H01M2004/027—Negative electrodes
    • 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
    • H01M4/58—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
    • H01M4/581—Chalcogenides or intercalation compounds thereof
    • H01M4/5815—Sulfides
    • 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
    • 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

Abstract

The present invention relates to an anode active material, a nonaqueous lithium secondary battery, and a preparation method thereof. The surface of a carbonaceous material is modified without using an electrolyte additive, and the reactivity and structural stability of the surface is improved, thereby obtaining long lifetime characteristics without deteriorating charge/discharge efficiency and rate characteristics when applied as an anode active material of a nonaqueous lithium secondary battery. According to the present invention, the anode active material comprises a carbonaceous material, and a coating layer formed on the surface of the carbonaceous material through hetero atom substitution, wherein the hetero atom can be phosphorus (P) or sulfur (S). A side reaction with an electrolyte on the surface of the carbonaceous material is inhibited and the structural stability of the surface is enhanced by forming a coating layer on the surface of the carbonaceous material with a hetero atom such as phosphorus (P) or sulfur (S), thereby improving the lifetime characteristics and rate characteristics of a lithium secondary battery.
PCT/KR2011/006110 2010-09-16 2011-08-19 Anode active material, nonaqueous lithium secondary battery containing same, and preparation method thereof WO2012036385A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201180044303.8A CN103140968B (en) 2010-09-16 2011-08-19 Active material of positive electrode, non-aqueous lithium secondary cell containing this active material of positive electrode and preparation method thereof
US13/822,383 US20130177815A1 (en) 2010-09-16 2011-08-19 Negative active material, lithium secondary battery comprising the negative active material and manufacturing method thereof

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20100091296 2010-09-16
KR10-2010-0091296 2010-09-16
KR10-2011-0077357 2011-08-03
KR1020110077357A KR101316638B1 (en) 2010-09-16 2011-08-03 Negative active material, Lithium secondary battery comprising the negative active material and manufacturing method thereof

Publications (2)

Publication Number Publication Date
WO2012036385A2 WO2012036385A2 (en) 2012-03-22
WO2012036385A3 true WO2012036385A3 (en) 2012-05-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2011/006110 WO2012036385A2 (en) 2010-09-16 2011-08-19 Anode active material, nonaqueous lithium secondary battery containing same, and preparation method thereof

Country Status (1)

Country Link
WO (1) WO2012036385A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050115480A (en) * 2004-06-03 2005-12-08 한국과학기술연구원 Carbon composite for secondary battery, fabrication method thereof, and secondary battery using the same
KR20070059389A (en) * 2005-12-06 2007-06-12 주식회사 엘지화학 Anode active material for secondary battery with high capacity
KR20080099132A (en) * 2007-05-07 2008-11-12 한양대학교 산학협력단 Method of preparing positive active material for lithium secondary battery, positive active material for lithium secondary battery prepared by same, and lithium secondary battery including positive active material
KR20090028986A (en) * 2007-09-17 2009-03-20 삼성에스디아이 주식회사 Negative active material for lithium secondary battery, and method of preparing same
KR20100073506A (en) * 2008-12-23 2010-07-01 삼성전자주식회사 Negative active material, negative electrode comprising same, method of preparing negative electrode, and lithium battery

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050115480A (en) * 2004-06-03 2005-12-08 한국과학기술연구원 Carbon composite for secondary battery, fabrication method thereof, and secondary battery using the same
KR20070059389A (en) * 2005-12-06 2007-06-12 주식회사 엘지화학 Anode active material for secondary battery with high capacity
KR20080099132A (en) * 2007-05-07 2008-11-12 한양대학교 산학협력단 Method of preparing positive active material for lithium secondary battery, positive active material for lithium secondary battery prepared by same, and lithium secondary battery including positive active material
KR20090028986A (en) * 2007-09-17 2009-03-20 삼성에스디아이 주식회사 Negative active material for lithium secondary battery, and method of preparing same
KR20100073506A (en) * 2008-12-23 2010-07-01 삼성전자주식회사 Negative active material, negative electrode comprising same, method of preparing negative electrode, and lithium battery

Also Published As

Publication number Publication date
WO2012036385A2 (en) 2012-03-22

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