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Development of single cell protectors for sealed silver-zinc cells, phase 1
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Imamura, M. S. Donovan, R. L. Lear, J. W. Murray, B. |
| Copyright Year | 1976 |
| Description | A single cell protector (SCP) assembly capable of protecting a single silver-zinc (Ag Zn) battery cell was designed, fabricated, and tested. The SCP provides cell-level protection against overcharge and overdischarge by a bypass circuit. The bypass circuit consists of a magnetic-latching relay that is controlled by the high and low-voltage limit comparators. Although designed specifically for secondary Ag-Zn cells, the SCP is flexible enough to be adapted to other rechargeable cells. Eighteen SCPs were used in life testing of an 18-cell battery. The cells were sealed Ag-Zn system with inorganic separators. For comparison, another 18-cell battery was subjected to identical life test conditions, but with battery-level protection rather than cell-level. An alternative approach to the SCP design in the form of a microprocessor-based system was conceptually designed. The comparison of SCP and microprocessor approaches is also presented and a preferred approach for Ag-Zn battery protection is discussed. |
| File Size | 8732309 |
| Page Count | 129 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19760025563 |
| Archival Resource Key | ark:/13960/t7fr4nz84 |
| Language | English |
| Publisher Date | 1976-09-01 |
| Access Restriction | Open |
| Subject Keyword | Energy Production And Conversion Fabrication Performance Tests Silver Zinc Batteries Accelerated Life Tests Electric Relays Microprocessors Protectors Energy Policy Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
