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Bending properties of nickel electrodes for nickel-hydrogen batteriesRecent changes in manufacturing have resulted in nickel-hydrogen batteries which fail prematurely by electrical shorting. This is believed to be a result of a blistering problem in the nickel electrodes. This study investigates the bending properties of nickel electrodes in an attempt to correlate the bending properties with the propensity of the electrode to blister. Nickel electrodes from three different batches of material were tested in both the as-received and impregnated forms. Effects of specimen curvature and position within the electrode on the bending strength were studied and within-electrode and batch-to-batch variation were addressed. Two color imaging techniques were employed which allowed differentiation of phases within the electrodes. These techniques aided in distinguishing the relative amounts of nickel hydroxide surface loading on each electrode, relating surface loading to bend strength. Bend strength was found to increase with the amount of surface loading.
Document ID
19950023838
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Lerch, Bradley
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 6, 2013
Publication Date
April 1, 1995
Publication Information
Publication: Space Electrochemical Research and Technology. Abstracts
Subject Category
Electronics And Electrical Engineering
Accession Number
95N30259
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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