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Characteristics of storage related capacity loss in Ni/H2 cellsThe changes in the capacity, voltage and pressure profile of flight configuration Ni/H2 cells when they are stored for extended periods is examined. The Ni/H2 cells exhibit capacity fade phenomenon regardless of their design when they are stored at room temperature. Capacity loss also occurs if old cells (5 years old) are stored in a very low rate trickle charge (C/200 rate) condition. A periodic recharge technique leads to pressure rise in the cells. Conventional trickle charge (C/100 rate) helps in minimizing or eliminating the second plateau which is one of the characteristics of the capacity fade phenomenon.
Document ID
19930011312
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Vaidyanathan, Hari
(Communications Satellite Corp. Clarksburg, MD, United States)
Date Acquired
September 6, 2013
Publication Date
February 1, 1993
Publication Information
Publication: NASA. Marshall Space Flight Center, The 1992 NASA Aerospace Battery Workshop
Subject Category
Energy Production And Conversion
Report/Patent Number
STD/92-118
Accession Number
93N20501
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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