Accession Number:

AD0623329

Title:

ALKALINE-MNO2 BATTERY.

Descriptive Note:

Rept. no. 8 (Final), 1 May 62-31 Jan 65,

Corporate Author:

UNION CARBIDE CORP CLEVELAND OHIO ELECTROCHEMICAL PRODUCT DEVELOPMENT LAB

Personal Author(s):

• Winger,J.

Report Date:

1965-06-28

Pagination or Media Count:

105.0

Abstract:

A lower orecarbon ratio 41 was found to improve the low temperature service of the cathode generally 100 per cent. Mixing and molding parameters for optimum cathode manufacture were determined and a factory trial of low temperature cells was made. The cathode absorbed liquid during high temperature storage which reduced the packing. Addition of a binder corrected the problem and maintained the service improvement previously obtained. A 4 per cent binder level in the cathode was optimum and repeat laboratory trials confirmed the improvement in high temperature shelf life. The importance of cathode density was established as low temperature service was adversely affected by low density cathodes. Service life was also improved by using Pellon separator paper. Anode additives improved shelf life but reduced service at low temperature. Further work on cathode construction optimization showed that the type mixer used for LeClanche cells improved cell performance at low temperature but the handling characteristics of the mix were not practical from a manufacturing standpoint.

Descriptors:

• *ALKALINE BATTERIES
• *LOW TEMPERATURE BATTERIES
• PERFORMANCE(ENGINEERING)
• CONSTRUCTION
• DIOXIDES
• CATHODES(ELECTROLYTIC CELL)
• ELECTROLYTES
• BINDERS
• ZINC
• LIFE EXPECTANCY(SERVICE LIFE)
• STORAGE

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE