EVALUATION OF FOREIGN S-12 SILVER-ZINC CELLS.
Abstract
Two foreign S-12 silver-zinc cells used to power a transceiver were evaluated. Low temperature performance was significantly poorer than that of comparable US cells, while room temperature performance was equivalent. Dissection of one S-12 cell showed that it was designed with an excess of silver powder and that it contained a separator wrap which will limit the useful life of the cell to three to four months, particularly for applications in the tropics. Another shortcoming of the S-12 cells is that the zinc negatives are wrapped in cellophane membrane, a design feature which will decrease the zinc capacity at high rates and/or low temperatures. To maintain maximum capacity under extreme environmental conditions it is standard practice in the US to wrap the silver positives in cellophane membrane. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1967
- Accession Number
- AD0662737
Entities
People
- Otto C. Wagner
Organizations
- United States Army Communications-Electronics Command