KR960037572A - Carbon-doped Lithium Cobalt Oxide and Method of Making the Same - Google Patents

Carbon-doped Lithium Cobalt Oxide and Method of Making the Same Download PDF

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Publication number
KR960037572A
KR960037572A KR1019950009139A KR19950009139A KR960037572A KR 960037572 A KR960037572 A KR 960037572A KR 1019950009139 A KR1019950009139 A KR 1019950009139A KR 19950009139 A KR19950009139 A KR 19950009139A KR 960037572 A KR960037572 A KR 960037572A
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South Korea
Prior art keywords
lithium
cobalt
cobalt oxide
carbon
lithium cobalt
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KR1019950009139A
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Korean (ko)
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KR0140253B1 (en
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김건
최성욱
임성연
박동곤
정유경
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김건
정유경
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Priority to KR1019950009139A priority Critical patent/KR0140253B1/en
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Publication of KR0140253B1 publication Critical patent/KR0140253B1/en

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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
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
    • H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G51/00—Compounds of cobalt
    • C01G51/40—Cobaltates
    • C01G51/42—Cobaltates containing alkali metals, e.g. LiCoO2
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C01P2002/52—Solid solutions containing elements as dopants
    • C01P2002/54—Solid solutions containing elements as dopants one element only
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/40—Electric properties
    • 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)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Secondary Cells (AREA)

Abstract

본 발명은 리튬 코발트 산화물 및 그 제조 방법에 관한 것이다. 본 발명의 방법에 따라 제조되는 카본-도핑된 리튬 코발트 산화물은 종래에 전극 물질로서 사용되는 복합 금속 산화물에 비해 비표적이 크고, 입자가 미세할 뿐만 아니라 카본이 도핑되어 있기 때문에 전도성이 우수하여 별도의 도전체와 혼합하여 사용할 필요가 없다.The present invention relates to lithium cobalt oxide and a method of manufacturing the same. The carbon-doped lithium cobalt oxide prepared according to the method of the present invention has a large specific target compared to the composite metal oxide conventionally used as an electrode material, and because the carbon is doped as well as the particles are fine, the conductivity is excellent. There is no need to mix with conductors.

Description

카본-도핑된 리튬 코발트 산화물 및 그 제조 방법Carbon-doped Lithium Cobalt Oxide and Method of Making the Same

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제4도는 본 발명의 일실시예에 따라 제조된 카본-도핑된 리튬 코발트 산화물의 주사현미경 사진이다. 제7도는 본 발명의 일실시예에 따라 제조된 PVA-금속 졸의 DSC 열분석 결과를 나타내고 있다.4 is a scanning micrograph of a carbon-doped lithium cobalt oxide prepared according to one embodiment of the present invention. 7 shows the results of DSC thermal analysis of PVA-metal sol prepared according to one embodiment of the present invention.

Claims (7)

전지 극판 재료로서 사용되는 결정성 분말 형태의 카본-도핑된 리튬 코발트 산화물.Carbon-doped lithium cobalt oxide in the form of crystalline powder used as battery electrode plate material. 제1항에 있어서, 상기 분말의 평균입경은 1㎛ 이하인 것을 특징으로 하는 카본-도핑된 리튬 코발트 산화물.The carbon-doped lithium cobalt oxide of claim 1, wherein the average particle diameter of the powder is 1 μm or less. 리튬과 코발트 이온이 동일한 몰비가 되도록 리튬화합물 수용액과 코발트화합물 수용액을 혼합하는 단계; 폴리비닐알콜, 폴리아크릴산, 폴리에틸렌글리콜 및 폴리비닐부티랄로 이루어진 군에서 선택된 하나의 고분자를 함유하는 용액과 상기 단계에서 제조된 혼합 용액을 혼합, 교반하는 겔상으로 만드는 단계; 및 상기 단계에서 제조된 겔상의 혼합물을 200 내지 300℃에서 전처리한 다음, 500 내지 800℃에서 열처리 하는 것을 특징으로 하는 리튬 코발트 산화물의 제조 방법.Mixing an aqueous lithium compound solution and an aqueous cobalt compound solution such that lithium and cobalt ions have the same molar ratio; Mixing a solution containing one polymer selected from the group consisting of polyvinyl alcohol, polyacrylic acid, polyethylene glycol, and polyvinyl butyral and the mixed solution prepared in the above step into a gel phase which is stirred and stirred; And a pretreatment of the gelled mixture prepared in the step at 200 to 300 ° C., followed by heat treatment at 500 to 800 ° C. 제3항에 있어서, 상기 리튬화합물은 질산리튬 또는 아세트산리튬인 것을 특징으로 하는 리튬 코발트 산화물의 제조 방법.The method of claim 3, wherein the lithium compound is lithium nitrate or lithium acetate. 제3항에 있어서, 상기 코발트화합물은 질산코발트 또는 아세트산코발트인 것을 특징으로 하는 리튬 코발트 산화물의 제조 방법.The method for producing lithium cobalt oxide according to claim 3, wherein the cobalt compound is cobalt nitrate or cobalt acetate. 제3항에 있어서, 상기 고분자는 상기 리튬 및 코발트 이온 몰수에 대하여 고분자 반복 단위 몰수가 0.01 내지 0.1이 되도록 첨가되는 것을 특징으로 하는 리튬 코발트 산화물의 제조 방법.The method of claim 3, wherein the polymer is added so that the number of moles of polymer repeating units is 0.01 to 0.1 based on the number of moles of lithium and cobalt ions. 제3항에 있어서, 상기 열처리 공정은 질소 분위기하에서 이루어지는 것을 특징으로 하는 리튬 코발트 산화물의 제조 방법.The method for producing lithium cobalt oxide according to claim 3, wherein the heat treatment step is performed under a nitrogen atmosphere. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950009139A 1995-04-18 1995-04-18 Carbon-doped lithium cobalt oxide and its method KR0140253B1 (en)

Priority Applications (1)

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KR0140253B1 KR0140253B1 (en) 1998-06-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100561324B1 (en) * 2004-10-11 2006-03-17 요업기술원 Fine powders of cobalt oxide for black pigment and the manufacturing method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106745328B (en) * 2016-12-02 2018-03-30 济南大学 A kind of application of sulfur doping cobalt oxide nano-powder and electrolysis water

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100561324B1 (en) * 2004-10-11 2006-03-17 요업기술원 Fine powders of cobalt oxide for black pigment and the manufacturing method thereof

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