Heat-sterilized silver oxide--zinc cells cycle life studies. [4. 2 Ah]
Technical Report
·
OSTI ID:7212635
A JPL study was conducted to evaluate the cell design parameters that contribute to the cycle life of sealed, heat-sterilized silver oxide--zinc cells. Test cells having a rated capacity of 4.2 Ah were fabricated from zinc oxide electrodes prepared by the sintered Teflon process. Two separator variations were evaluated, one having acrylic acid and the other, methacrylic acid, grafted to irradiated polyethylene film. Significant results of this study include the following: cycle life in excess of 300 cycles was attained; a zinc oxide/silver stoichiometric ratio of 1.5 resulted in greater cycle life than a ratio of 1.1, and similar cycle life to cells having a ratio of 2; cells having methacrylic acid-grafted separators suffered somewhat less in capacity loss due to zinc electrode shape change than cells having acrylic acid type; use of acrylic acid-grafted separators was slightly superior to the methacrylic acid type in respect to silver penetration; and the inclusion of a layer of potassium titanate paper adjacent to the zinc electrodes resulted in cells that achieved higher cycle life before any of the group failed than that reached by cells of any other construction.
- Research Organization:
- Jet Propulsion Lab., Pasadena, Calif. (USA)
- OSTI ID:
- 7212635
- Report Number(s):
- N-73-17038; NASA-CR-130723; JPL-TM-33-581
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
25 ENERGY STORAGE
250902* -- Energy Storage-- Batteries-- Performance & Testing
250903 -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ACRYLIC ACID
ALKALI METAL COMPOUNDS
ANODES
BATTERY SEPARATORS
CARBOXYLIC ACIDS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL RADIATION EFFECTS
CHEMISTRY
CONFIGURATION
DESIGN
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ENERGY STORAGE SYSTEMS
GRAFT POLYMERS
METAL-METAL OXIDE BATTERIES
METHACRYLIC ACID
MONOCARBOXYLIC ACIDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDES
OXYGEN COMPOUNDS
POLYETHYLENES
POLYMERS
POLYOLEFINS
POTASSIUM COMPOUNDS
RADIATION CHEMISTRY
RADIATION EFFECTS
SERVICE LIFE
SHAPE
SILVER COMPOUNDS
SILVER OXIDES
SILVER-ZINC BATTERIES
STERILIZATION
TITANATES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
250902* -- Energy Storage-- Batteries-- Performance & Testing
250903 -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ACRYLIC ACID
ALKALI METAL COMPOUNDS
ANODES
BATTERY SEPARATORS
CARBOXYLIC ACIDS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL RADIATION EFFECTS
CHEMISTRY
CONFIGURATION
DESIGN
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ENERGY STORAGE SYSTEMS
GRAFT POLYMERS
METAL-METAL OXIDE BATTERIES
METHACRYLIC ACID
MONOCARBOXYLIC ACIDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDES
OXYGEN COMPOUNDS
POLYETHYLENES
POLYMERS
POLYOLEFINS
POTASSIUM COMPOUNDS
RADIATION CHEMISTRY
RADIATION EFFECTS
SERVICE LIFE
SHAPE
SILVER COMPOUNDS
SILVER OXIDES
SILVER-ZINC BATTERIES
STERILIZATION
TITANATES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS