Abstract
Alloys used to produce reversible, hydrogen storage electrodes in the form of metal hydride for nickel-metal hydride batteries are capable to cause a reversible electrochemical reaction in alkaline environment. Reactions occurred at the Ni-MH accumulators as well as the mechanism of the electrode reactions in this study, have been discussed. Selection criteria of hydrogen absorbing alloys, useful for electrode application and physical and chemical test methods enabling to make the selection, have been defined.
In the final part of the paper the AB5, AB2, AB/A2B types of alloys and employed modification made by substitution another metals for the individual alloy components, thus enabling modification of the electrochemical features of electrode by quantitative and qualitative changes of the alloy, have been discussed.
It was stated that the Ni-MH type accumulators indicate some very interesting features: absence of toxic components, high energy density, ability for high charge and discharge currents, good cycle life, capability to be completely recycled and that the application of the hydrogen absorbing alloys to Ni-MH type accumulators creates a chance to eliminate cadmium in alkaline Ni-Cd electrochemical system.
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Kopczyk, M., Wójcik, G. (1996). Application of the Hydrogen Absorbing Alloys to Ni-MH Type Accumulators. In: Barsukov, V., Beck, F. (eds) New Promising Electrochemical Systems for Rechargeable Batteries. NATO ASI Series, vol 6. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1643-2_20
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DOI: https://doi.org/10.1007/978-94-009-1643-2_20
Publisher Name: Springer, Dordrecht
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