JPS5673865A - Manufacture of positive active material for nonaqueous battery - Google Patents

Manufacture of positive active material for nonaqueous battery

Info

Publication number
JPS5673865A
JPS5673865A JP15103079A JP15103079A JPS5673865A JP S5673865 A JPS5673865 A JP S5673865A JP 15103079 A JP15103079 A JP 15103079A JP 15103079 A JP15103079 A JP 15103079A JP S5673865 A JPS5673865 A JP S5673865A
Authority
JP
Japan
Prior art keywords
acid
mno2
battery
positive electrode
sealing plate
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP15103079A
Other languages
Japanese (ja)
Inventor
Nobuo Eda
Hiromichi Ogawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP15103079A priority Critical patent/JPS5673865A/en
Publication of JPS5673865A publication Critical patent/JPS5673865A/en
Pending legal-status Critical Current

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
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
    • H01M4/502—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese for non-aqueous cells
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

PURPOSE:To increase the utilization ratio of the active material and enhance the preservation characteristics of a nonaqueous battery, by subjecting alpha-Mn2O3 to an acid treatment to obtain gamma-MnO2, before the thus obtained gamma-MnO2 is dehydrated by dielectric heating by means of microwave irradiation to be used for the positive electrode. CONSTITUTION:A positive electrode 5 made of manganese dioxide, a separator 7 and a liquid- holding material 8 are placed in a case 1. Next, a lithium negative-electrode 4, which is pressed against a sealing plate 2 with a grid interposed between them and is connected to the sealing plate 2, is placed on the liquid-holding material 8. At the same time, a gasket 9 is interposed between the case 1 and the sealing plate 2 to hermetically seal the battery, and the whole constitutes a nonaqueous-electrolyte battery. The manganese dioxide used for the positive electrode 5 of such a battery is prepared by treating alpha-Mn2O3 with an acid such as sulfuric acid or nitric acid to obtain gamma-MnO2, and dehydrating the thus obtained gamma-MnO2 by dielectric heating by means of microwave irradiation. A temperature of below 250 deg.C is preferred for the former dielectric heating. The concentration of the acid which is used for the former acid treatment is preferred to be below 10wt% with sulfuric acid, and below 30wt% with nitric acid.
JP15103079A 1979-11-20 1979-11-20 Manufacture of positive active material for nonaqueous battery Pending JPS5673865A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15103079A JPS5673865A (en) 1979-11-20 1979-11-20 Manufacture of positive active material for nonaqueous battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15103079A JPS5673865A (en) 1979-11-20 1979-11-20 Manufacture of positive active material for nonaqueous battery

Publications (1)

Publication Number Publication Date
JPS5673865A true JPS5673865A (en) 1981-06-18

Family

ID=15509758

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15103079A Pending JPS5673865A (en) 1979-11-20 1979-11-20 Manufacture of positive active material for nonaqueous battery

Country Status (1)

Country Link
JP (1) JPS5673865A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02253560A (en) * 1989-03-27 1990-10-12 Sanyo Electric Co Ltd Battery

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02253560A (en) * 1989-03-27 1990-10-12 Sanyo Electric Co Ltd Battery
JPH0773051B2 (en) * 1989-03-27 1995-08-02 三洋電機株式会社 Battery

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