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U.S. Department of Energy
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Development of single-cell protectors for sealed silver-zinc cells. Final report

Technical Report ·
OSTI ID:6236612
Three design approaches to cell-level protection were developed, fabricated, and tested. These systems are referred to as the single-cell protector (SCP), multiplexed-cell protector(MCP). To evaluate the systems 18-cell battery packs without cell level control were subjected to cycle life test. A total of five batteries were subjected to simulate synchronous orbit cycling at 40% depth of discharge at 22C. Batteries without cell-level protection failed between 345 and 255 cycles. Cell failure in the cell level protected batteries occurred between 412 and 540. It was determined that the cell-level monitoring and protection is necessary to attain the long cycle life of a AgZn battery. The best method of providing control and protection of the AgZn cells depends on the specific application and capability of the user.
Research Organization:
Martin Marietta Corp., Denver, CO (USA)
OSTI ID:
6236612
Report Number(s):
N-79-12550
Country of Publication:
United States
Language:
English