KR970020952A - Manganese Dioxide Manufacturing Method - Google Patents

Manganese Dioxide Manufacturing Method Download PDF

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Publication number
KR970020952A
KR970020952A KR1019950034712A KR19950034712A KR970020952A KR 970020952 A KR970020952 A KR 970020952A KR 1019950034712 A KR1019950034712 A KR 1019950034712A KR 19950034712 A KR19950034712 A KR 19950034712A KR 970020952 A KR970020952 A KR 970020952A
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South Korea
Prior art keywords
permanganate
manganese dioxide
salt
crystal structure
heat
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KR1019950034712A
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Korean (ko)
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KR0164961B1 (en
Inventor
오승모
김사흠
Original Assignee
한송엽
서울대학교 공과대학 교육연구재단
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Priority to KR1019950034712A priority Critical patent/KR0164961B1/en
Publication of KR970020952A publication Critical patent/KR970020952A/en
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Publication of KR0164961B1 publication Critical patent/KR0164961B1/en

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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G45/00—Compounds of manganese
    • C01G45/02—Oxides; Hydroxides
    • 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • H01M4/1391—Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/20—Two-dimensional structures
    • 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)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

과망간산염(AMnO4, A=Li, Na, K)을 200-1000℃ 온도범위에서 열처리하여 층상 결정구조의 이산화망간을 제조한다. 이산화망간의 층상 결정구조를 더욱 안정화시킬 수 있도록 비스무스(Bi) 또는 납(Pb)을 함유할 수도 있다. 결과물인 이산화망간은 가역적인 충방전 특성을 가지므로 특히 이차전지 양극재료로 사용하기에 적합하다.Permanganate (AMnO 4 , A = Li, Na, K) is heat-treated at a temperature range of 200-1000 ° C. to prepare manganese dioxide having a layered crystal structure. It may contain bismuth (Bi) or lead (Pb) to further stabilize the layered crystal structure of manganese dioxide. The resulting manganese dioxide has a reversible charge / discharge characteristic, which makes it particularly suitable for use as a cathode material for secondary batteries.

Description

층상 결정구조 이산화망간 제조방법Manganese Dioxide Manufacturing Method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 의한 층상 결정 구조 이산화망간의 X-선 회절분석 결과.1 is an X-ray diffraction analysis of the layered crystal structure manganese dioxide according to the present invention.

Claims (12)

과망간산염을 열처리하여 층상 결정구조의 이산화망간을 제조하는 방법.A method for producing manganese dioxide having a layered crystal structure by heat-treating permanganate. 제1항에 있어서, 상기 과망간산염을 열처리한 뒤 세척하여 수용성 부반응생성물을 제거하는 것을 특징으로 하는 방법.The method of claim 1, wherein the permanganate salt is heat-treated and washed to remove the water-soluble side reaction product. 제1항에 있어서, 상기 과망간산염은 과망간산리튬, 과망간산나트륨 또는 과망간산칼륨인 것을 특징으로하는 방법.The method of claim 1, wherein the permanganate is lithium permanganate, sodium permanganate or potassium permanganate. 제1항에 있어서, 상기 과망간산염의 열처리는 200∼1000℃온도 범위에서 이루어지는 것을 특징으로 하는 방법.The method of claim 1, wherein the heat treatment of the permanganate is carried out in the temperature range of 200 to 1000 ℃. 제1항에 있어서, 상기 과망간산염에 추가로 Bi염(III)을 혼합하여 열처리하는 것을 특징으로 하는 방법.The method of claim 1, wherein the bimanganate is further mixed with Bi salt (III) for heat treatment. 제5항에 있어서, 상기 Bi염(III)은 Bi203또는 Bi(NO3)3인 것을 특징으로 하는 방법.6. The method of claim 5, wherein said Bi salt (III) is Bi 2 0 3 or Bi (NO 3 ) 3 . 제1항에 있어서, 상기 과망간산염에 추가로 Pb염(II)을 혼합하여 열처리 하는 것을 특징으로 하는 방법.The method according to claim 1, wherein the permanganate salt is further mixed with Pb salt (II) for heat treatment. 제7항에 있어서 상기 Pb염(II)은 PbO, 또는 Pb(NO3)2인 것을 특징으로 하는 방법.8. The method of claim 7, wherein said Pb salt (II) is PbO or Pb (NO 3 ) 2 . 제1항에 있어서, 상기 층상 결정구조 이산화망간을 수소이온이 약 1N 이하인 산으로 세척하는 것을 특징으로 하는 방법.The method of claim 1 wherein the layered manganese dioxide is washed with an acid having a hydrogen ion of about 1 N or less. 제9항에 있어서, 상기 산은 황산 또는 질산인 것을 특징으로 하는 방법.10. The method of claim 9, wherein the acid is sulfuric acid or nitric acid. 제1항에 있어서, 상기 층상 결정구조의 이산화망간은 전지의 양극재료용인 것을 특징으로 하는 방법.The method according to claim 1, wherein the manganese dioxide of the layered crystal structure is for a cathode material of a battery. 제11항에 있어서, 상기 전지는 이차전지인 것을 특징으로 하는 방법.The method of claim 11, wherein the battery is a secondary battery. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950034712A 1995-10-10 1995-10-10 Method for manufacturing manganese dioxide of layered structure KR0164961B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950034712A KR0164961B1 (en) 1995-10-10 1995-10-10 Method for manufacturing manganese dioxide of layered structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950034712A KR0164961B1 (en) 1995-10-10 1995-10-10 Method for manufacturing manganese dioxide of layered structure

Publications (2)

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KR970020952A true KR970020952A (en) 1997-05-28
KR0164961B1 KR0164961B1 (en) 1999-01-15

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101325176B1 (en) * 2011-03-23 2013-11-07 한국지질자원연구원 Method of manufacturing chemical manganese dioxide from trivalent cathode active material, the chemical manganese dioxide manufactured by the method and secondary battery including the chemical manganese dioxide

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