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Fabrication and testing of negative limited sealed nickel-cadmium cells
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Gordy, D. J. |
| Copyright Year | 1975 |
| Description | A number of 20 Ah and 3 Ah negative limited nickel-cadmium cells were fabricated and assembled in hermetically sealed stainless steel containers. The cells exhibit a large voltage rise signal, in excess of 250 mA, at the end of each charge period. They also exhibit lower self discharge rates than conventional sealed nickel-cadmium cells and do not require overcharge. The cells are capable of operating at charge and discharge rates up to 5C and can deliver at least 1000 cycles on a 30 minute regime at 25% DOD. A small amount of gassing occurs, but is not deemed critical or detrimental in view of the facts that, (1) operating pressures are in the range of 7 to 20 psig and (2) the cells are operated in the flooded condition so therefore contain little internal void volume. The cells were found to exhibit somewhat higher capacity loss rates during cycling than conventional sealed nickel-cadmium batteries. |
| File Size | 1452802 |
| Page Count | 69 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19750025420 |
| Archival Resource Key | ark:/13960/t6256d57n |
| Language | English |
| Publisher Date | 1975-03-31 |
| Access Restriction | Open |
| Subject Keyword | Energy Production And Conversion Fabrication Electric Potential Service Life Performance Tests Charging Capacity Gas Evolution Electric Discharges Alkaline Batteries Reliability Engineering Nickel Cadmium Batteries Tests 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 |
