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Expansion of the nickel electrodeTo observe a reasonable amount of expansion, months or years in acutal batteries are required. Therefore, the technique of electrode bending was developed. Active material is taken off a sample electrode on one side, and left only on the other side with a cadmium counter electrode. With this configuration, if the active material expands, the electrode will bend convex - concave towards this direction. This very small bending may be easily detected with light deflection. A laser beam was used to project it on the screen through a mirror attached on the electrode, thus making a very sensitive measurement of a very small expansion.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Lim, H. S.
(Hughes Research Labs. Malibu, CA, United States)
Date Acquired
August 11, 2013
Publication Date
March 1, 1981
Publication Information
Publication: NASA. Goddard Space Flight Center The 1980 Goddard Space Flight Center Battery Workshop
Subject Category
Energy Production And Conversion
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.

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