A COMPARISON OF SILVER-CADMIUM AND NICKEL -CADMIUM BATTERIES FOR USE ON SATELLITES,
Abstract
The power system used on many near earth satellites consists of a solar cell charger and a Ni-Cd battery. This combination has been used satisfactorily on satellites. A constant goal of power system designers is to decrease the weight and increase the reliability of such systems. The replacement of Ni-Cd batteries with Ag-Cd batteries is reported to decrease the weight, while maintaining the capacity, of a given power system. This paper is the result of an investigation of this possibility. Areas investigated were: (1) The capability of a solar cell Ag-Cd cell system to limit overcharge current. (2) The compatibility of solar cells and Ag-Cd cells in such a power system. (3) The relationship between temperature of the secondary cells and their end of charge and discharge voltages for Ni-Cd and Ag-Cd cells. (4) The relative weight and volume advantages in the use of Ag-Cd cells over Ni-Cd cells. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 30, 1962
- Accession Number
- AD0631700
Entities
People
- Wade E. Radford
Organizations
- Johns Hopkins University Applied Physics Laboratory