Processes in manganese-air-zinc galvanic cells
The authors report certain results of studies relating to development of concepts on the macrokinetics of processes in galvanic cells with thickened electrolytes, and design of an improved variant of the air-zinc cell with the use of new types of carbonaceous materials with and without promoters. Studies of mass transfer in cells of the 6F22 type showed that in the standard composition the zinc-air and zinc-manganese cells are not balanced in capillary activity. This results in flow of the electrolyte from one layer to another, in the general direction from the negative to the positive electrode. Modified KM-2 carbon, which makes the use of the scarce MED in alkaline batteries entirely unnecessary, is a promising active material for the air electrode. However, even in this case the capillary activity of the system remains unbalanced. It is necessary to carry out comprehensive studies of the capillary-sorption properties of the components of 6F22 cells and to find an active material for the air electrode having lower capillary activity than KM-2 carbon.
- OSTI ID:
- 6191471
- Journal Information:
- J. Appl. Chem. USSR (Engl. Transl.); (United States), Vol. 61:3; Other Information: Translated from Zh. Prikl. Khim.; 61: No. 3, 490-495(Mar 1988)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CARBONACEOUS MATERIALS
CATALYTIC EFFECTS
ELECTROCATALYSTS
MATERIALS TESTING
ELECTROLYTES
ZINC-AIR BATTERIES
KINETICS
ZINC-MANGANESE BATTERIES
ACTIVATED CARBON
CAPILLARY FLOW
DESIGN
ELECTRODES
MASS TRANSFER
PROMOTERS
SURFACE PROPERTIES
ADSORBENTS
CARBON
CATALYSTS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELEMENTS
FLUID FLOW
MATERIALS
METAL-GAS BATTERIES
METAL-METAL OXIDE BATTERIES
NONMETALS
TESTING
250903* - Energy Storage- Batteries- Materials
Components
& Auxiliaries