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Nickel-hydrogen cell low-Earth life test updateWhen individual pressure vessel (IPV) nickel-hydrogen (Ni/H2) cells were selected as the energy storage system for the Space Station Freedom in March of 1986, a limited database existed on life and performance characteristics of these cells in a low earth orbit (LEO) regime. Therefore, NASA LeRC initiated a Ni/H2 cell test program with the primary objectives of building a test facility, procuring cells from existing NASA contracts, and screening several cell designs by life testing in a LEO 35 percent depth of discharge (DOD) scenario. A total of 40 cells incorporating 13 designs were purchased from Yardney, Hughes, and Eagle-Picher. Thirty-two of the cells purchased were 65 A-hr nameplate capacity and eight cells were 50 A-hr. Yardney and Eagle-Picher cells were built with both the Air Force recirculating and the advanced back-to-back electrode stack configurations and incorporated 31 and 26 percent KOH. Acceptance testing of the first delivered cells began in March of 1988, with life testing following in September of that year.Performance comparisons of these cells are made here while specifically addressing life test data relative to the design differences.
Document ID
19910022394
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Frate, David T. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1991
Subject Category
Energy Production And Conversion
Report/Patent Number
NAS 1.15:105229
NASA-TM-105229
E-6552
Meeting Information
Meeting: Intersociety Energy Conversion Engineering Conference
Location: Boston, MA
Country: United States
Start Date: August 4, 1991
End Date: August 9, 1991
Sponsors: IEEE, ACS, ANS, ASME, SAE, AIChE, AIAA
Accession Number
91N31708
Funding Number(s)
PROJECT: RTOP 474-46-10
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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