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Record 24 of 1275
Bending properties of nickel electrodes for nickel-hydrogen batteries
Author and Affiliation:
Lerch, Bradley(NASA Lewis Research Center, Cleveland, OH, United States)
Abstract: Recent 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.
Publication Date: Apr 01, 1995
Document ID:
19950023838
(Acquired Dec 28, 1995)
Accession Number: 95N30259
Subject Category: ELECTRONICS AND ELECTRICAL ENGINEERING
Coverage: Abstract Only
Document Type: Conference Paper
Publication Information: Space Electrochemical Research and Technology. Abstracts; p 9
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: NASA Lewis Research Center; Cleveland, OH, United States
Description: 1p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: BENDING; ELECTRODE MATERIALS; ELECTRODES; FAILURE ANALYSIS; NICKEL; NICKEL HYDROGEN BATTERIES; CURVATURE; LOADS (FORCES); METAL SURFACES
Imprint And Other Notes: In its Space Electrochemical Research and Technology. Abstracts p 9 (SEE N95-30255 10-44)
Availability Source: Other Sources
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