Nickel/cadmium aircraft batteries: experience with Celgard barrier layers at DREO. Technical note

Technical Report · Wed Mar 01 04:00:00 EST 1978

OSTI ID:6451476

Feldman, K; Verville, G

Problems arise with nickel/cadmium aircraft batteries as a result of deterioration of the conventional cellophane barrier layer in the separators. The cellophane deteriorates especially rapidly in the cells at elevated temperatures. Tests have shown that Celgard, a polypropylene microporous polymeric film manufactured by the Celanese Plastics Company, can be substituted for the cellophane and can readily withstand the oxidizing environment in the cell even at elevated temperatures. Celgard is available with several variations in characteristics,, but most of them were not studied in detail. Problems may be experienced with deterioration of wetting characteristics but these do not appear to be serious. Examples of laboratory experience which illustrates the ability of the Celgard to withstand severe usage are given.

• Research Organization: Defence Research Establishment, Ottawa, Ontario (Canada)
• OSTI ID: 6451476
• Report Number(s): AD-A-056769; DREO-TN-78-6
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
AIRCRAFT
AIRCRAFT COMPONENTS
BATTERY SEPARATORS
CARBOHYDRATES
CELLOPHANE
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ENERGY STORAGE SYSTEMS
FAILURES
FILMS
LAYERS
MATERIALS
METAL-METAL OXIDE BATTERIES
NICKEL-CADMIUM BATTERIES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PERFORMANCE TESTING
POLYMERS
POLYOLEFINS
POLYPROPYLENE
POLYSACCHARIDES
POROUS MATERIALS
SACCHARIDES
TESTING