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FR2358752A1 - Positive electrode compsn. for air depolarised cells - contg. synthetic gamma manganese dioxide, carbon and conductive alkaline soln. - Google Patents

Positive electrode compsn. for air depolarised cells - contg. synthetic gamma manganese dioxide, carbon and conductive alkaline soln.

Info

Publication number
FR2358752A1
FR2358752A1 FR7621445A FR7621445A FR2358752A1 FR 2358752 A1 FR2358752 A1 FR 2358752A1 FR 7621445 A FR7621445 A FR 7621445A FR 7621445 A FR7621445 A FR 7621445A FR 2358752 A1 FR2358752 A1 FR 2358752A1
Authority
FR
France
Prior art keywords
mno2
ore
compsn
cells
contg
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.)
Granted
Application number
FR7621445A
Other languages
French (fr)
Other versions
FR2358752B1 (en
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.)
KOCHERGINSKY MEER
Original Assignee
KOCHERGINSKY MEER
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 KOCHERGINSKY MEER filed Critical KOCHERGINSKY MEER
Priority to FR7621445A priority Critical patent/FR2358752A1/en
Publication of FR2358752A1 publication Critical patent/FR2358752A1/en
Application granted granted Critical
Publication of FR2358752B1 publication Critical patent/FR2358752B1/fr
Granted 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
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/96—Carbon-based 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
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/90—Selection of catalytic material
    • H01M4/9016—Oxides, hydroxides or oxygenated metallic salts
    • 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
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inert Electrodes (AREA)
  • Hybrid Cells (AREA)

Abstract

A pastelike compsn. for mfr. of positive electrodes for air-depolarised primary cells having a viscous electrolyte comprises synthetic gamma-MnO2, C and a conductive alkaline soln. The paste may also include Mn ore (beta-MnO2). The paste pref. contains 33-67 wt.% synthetic gamma-MnO2, 12-40% C and 20-28% KOH soln. Alternatively, it contains 16-33% synthetic MnO2, 17-34% Mn ore, 12-40% C and 20-28% KOH soln. The paste is mfrd. into electrodes having a porosity of 8.5-40%. The cells have a discharge voltage about 0.25V higher than similar cells using Mn ore catalyst, and a working life, 3-4 times longer, without use of expensive noble metal catalyst. Where some Mn ore is used, discharge voltage is not so high, but increase in capacity is retained. Electrodes discharged at high current density for prolonged intermittent periods had capacities up to 2400 min.
FR7621445A 1976-07-13 1976-07-13 Positive electrode compsn. for air depolarised cells - contg. synthetic gamma manganese dioxide, carbon and conductive alkaline soln. Granted FR2358752A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7621445A FR2358752A1 (en) 1976-07-13 1976-07-13 Positive electrode compsn. for air depolarised cells - contg. synthetic gamma manganese dioxide, carbon and conductive alkaline soln.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7621445A FR2358752A1 (en) 1976-07-13 1976-07-13 Positive electrode compsn. for air depolarised cells - contg. synthetic gamma manganese dioxide, carbon and conductive alkaline soln.

Publications (2)

Publication Number Publication Date
FR2358752A1 true FR2358752A1 (en) 1978-02-10
FR2358752B1 FR2358752B1 (en) 1978-12-15

Family

ID=9175682

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7621445A Granted FR2358752A1 (en) 1976-07-13 1976-07-13 Positive electrode compsn. for air depolarised cells - contg. synthetic gamma manganese dioxide, carbon and conductive alkaline soln.

Country Status (1)

Country Link
FR (1) FR2358752A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2392507A1 (en) * 1977-01-10 1978-12-22 Iskra Alkaline air-depolarised galvanic cell - which instantly generates high EMF, has positive electrode of manganese di:oxide, graphite and acetylene black
WO2000030193A1 (en) * 1998-11-16 2000-05-25 Duracell Inc. Alkaline cell with improved cathode

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2057248A5 (en) * 1969-08-07 1971-05-21 Anvar Dispersed electrode contg manganese dioxide and active carb

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2057248A5 (en) * 1969-08-07 1971-05-21 Anvar Dispersed electrode contg manganese dioxide and active carb

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
REVUE DT "CHEMISCHES ZENTRALBLATT" 1962, NO. 39, PAGE 14275, PARAGRAPHE 6 SE REFERANT AU BREVET SU 117 837 MENTIONNE DANS LA DEMANDE ) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2392507A1 (en) * 1977-01-10 1978-12-22 Iskra Alkaline air-depolarised galvanic cell - which instantly generates high EMF, has positive electrode of manganese di:oxide, graphite and acetylene black
WO2000030193A1 (en) * 1998-11-16 2000-05-25 Duracell Inc. Alkaline cell with improved cathode
US6207322B1 (en) 1998-11-16 2001-03-27 Duracell Inc Alkaline cell with semisolid cathode

Also Published As

Publication number Publication date
FR2358752B1 (en) 1978-12-15

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Legal Events

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