Cross-linked polyvinyl alcohol films as alkaline battery separators

Conference · Mon Mar 01 00:00:00 EST 1982

OSTI ID:5161734

Sheibley, D W; Manzo, M A; Gonzalez-Sanabria, O D

Cross-linking methods were 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: (1) PVA-dialdehyde blends post-treated with an acid or acid periodate solution (two-step method) and (2) PVA-dialdehyde blends cross-linked during film formation (drying) by using a reagent with both aldehyde and acid functionality (one-step method). Laboratory samples of each cross-linked type of film were prepared and evaluated in standard separator screening tests. The pilot-plant 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, Cleveland, OH (USA). Lewis Research Center
• OSTI ID: 5161734
• Report Number(s): NASA-TM-82802; CONF-801067-; E-1141
• Resource Relation: Conference: Lithium battery symposium, Hollywood, FL, USA, 5 Oct 1980
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
BATTERY SEPARATORS
MATERIALS
NICKEL-ZINC BATTERIES
PVA
PERFORMANCE
ALDEHYDES
CROSS-LINKING
ELECTROLYTIC CELLS
NONDESTRUCTIVE TESTING
SERVICE LIFE
ALCOHOLS
CHEMICAL REACTIONS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
HYDROXY COMPOUNDS
MATERIALS TESTING
METAL-METAL OXIDE BATTERIES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYMERIZATION
POLYMERS
POLYVINYLS
TESTING
250903* - Energy Storage- Batteries- Materials
Components
& Auxiliaries