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Structural comparison of nickel electrodes and precursor phasesResearchers summarize previous Raman spectroscopic results and discuss important structural differences in the various phases of active mass and active mass precursors. Raman spectra provide unique signatures for these phases, and allow one to distinguish each phase, even when the compound is amorphous to x rays (i.e., does not scatter x rays because of a lack of order and/or small particle size). The structural changes incurred during formation, charge and discharge, cobalt addition, and aging are discussed. The oxidation states and dopant contents are explained in terms of the nonstoichiometric structures.
Document ID
19900011156
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Cornilsen, Bahne C.
(Michigan Technological Univ. Houghton, MI, United States)
Shan, Xiaoyin
(Michigan Technological Univ. Houghton, MI, United States)
Loyselle, Patricia
(Michigan Technological Univ. Houghton, MI, United States)
Date Acquired
September 6, 2013
Publication Date
December 1, 1989
Publication Information
Publication: NASA, Lewis Research Center, Space Electrochemical Research and Technology (SERT), 1989
Subject Category
Energy Production And Conversion
Accession Number
90N20472
Funding Number(s)
CONTRACT_GRANT: NAG3-519
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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