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Test methods and results of the 10-cell bipolar Ni-H2 batteryCharacterization tests were carried out at three charge levels and four discharge levels. The "c' or capacity of the battery is designated at 6.5 ampere-hours. The recharge ampere-hours was the same for all test conditions, 6.5 A-H, regardless of the discharge capacity removed for any particular discharge rate. Less capacity can be removed at higher discharge rates to the same termination voltage, which was 0.50 volts for the weakest (lowest voltage) cell. The general trend of efficiencies increases as the charge rate increases as noted in results of the table included in the handout package. The data also indicate the efficiency increases as the discharge rate decreases. This is true; however, efficiencies at the discharge rates of c and 2c are penalized because these cycles received more overcharge than necessary.
Document ID
19830026990
Document Type
Conference Paper
Authors
Cataldo, R.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 11, 2013
Publication Date
August 1, 1983
Publication Information
Publication: NASA. Goddard Space Flight Center The 1982 Goddard Space Flight Center Battery Workshop
Subject Category
Electronics And Electrical Engineering
Accession Number
83N35261
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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