Evaluation of Storage Methods, Open Circuit Versus Continuous Trickle Charge, Sonotone 3.5 Ampere-Hour Sealed Nickel-Cadmium Secondary Spacecraft Cells

摘要

The specific purpose of the 5-year test is to compare, after each successive 1-year storage period, the discharge and charge characteristics of charged cells on open circuit versus that of cells on continuous trickel charge. Following completion of each year of storage, the cells were subjected to the standard acceptance test sequence. However, no cells were rejected or removed from the storage test on the basis of this testing sequence. These tests, after each year of storage, serve as a means of reporting the condition of the cells as the test continues and aids in the selection of a cell of lower capacity of each storage method for analysis at the end of each yearly storage period. Data of the acceptance test sequence following completion of the fourth 1-year storage period is contained in this report accompanied by summaries and data accumulated from the start of the storage testing. (Author)