Cross-linked polyvinyl alcohol films as alkaline battery separators
Cross-linking methods have been investigated to determine their effect on the performance of polyvinyl alcohol (PVA) films as alkaline battery separators. The following types of cross-linked PVA films are discussed: PVA-dialdehyde blends post-treated with an acid or acid periodate solution and PVA-dialdehyde blends cross-linked during film formation (drying) by using a reagent with both aldehyde and acid functionality. Laboratory samples of each cross-linked type of film were prepared and evaluated in standard separator screening tests. Then pilotplant batches of films were prepared and compared to measure differences due to the cross-linking method. The pilot-plant materials were then tested in nickel oxide-zinc cells to compare the two methods with respect to performance characteristics and cycle life. Cell test results are compared with those from tests with Celgard.
- Research Organization:
- National Aeronautics and Space Administration, Lewis Research Center, Cleveland, Ohio
- OSTI ID:
- 5562856
- Journal Information:
- J. Electrochem. Soc.; (United States), Vol. 130:2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BATTERY SEPARATORS
PERFORMANCE
TESTING
PVA
CROSS-LINKING
ACIDIZATION
ALDEHYDES
BENCH-SCALE EXPERIMENTS
FILMS
METAL-METAL OXIDE BATTERIES
NICKEL-ZINC BATTERIES
PERIODATES
PILOT PLANTS
ALCOHOLS
CHEMICAL REACTIONS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
FUNCTIONAL MODELS
HALOGEN COMPOUNDS
HYDROXY COMPOUNDS
IODINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXYGEN COMPOUNDS
POLYMERIZATION
POLYMERS
POLYVINYLS
250903* - Energy Storage- Batteries- Materials
Components
& Auxiliaries