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Structural models for nickel electrode active mass (1987)

Karjala, P. J. ; Loyselle, P. L. ; Cornilsen, Bahne C.

In: CASI

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Publication Date: 2013-08-31

Description: Raman spectroscopic data allow one to distinguish nickel electrode active mass, alpha and beta phase materials. Discharges active mass is not isostructural with beta-Ni(OH)2. This is contrary to the generally accepted model for the discharged beta phase of active mass. It is concluded that charged active mass displays a disordered and nonstoichiometric, nonclose packed structure of the R3 bar m, NiOOH structure type. Raman spectral data and x ray diffraction data are analyzed and shown to be consistent with this structural model.

Keywords: ENERGY PRODUCTION AND CONVERSION

Type: NASA-Lewis Research Center, Space Electrochemical Research and Technology (SERT); p 191-19

Format: application/pdf

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