Abstract
Nickel hydroxide is widely used as an active material in pasted-type nickel electrodes. Physical properties of several nickel hydroxide powders have been examined by laser diffraction, BET, X-ray diffraction, thermal analysis and SEM. Nickel hydroxide powder with a smaller crystalline size shows better charge-discharge cyclic characteristics. The chemical diffusion coefficients of the proton in the nickel hydroxide sample are measured by a current pulse relaxation method. Nickel hydroxide with a smaller crystalline size shows a higher proton diffusion coefficient, giving excellent cycling behaviour.
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Watanabe, K., Kikuoka, T. & Kumagai, N. Physical and electrochemical characteristics of nickel hydroxide as a positive material for rechargeable alkaline batteries. J Appl Electrochem 25, 219–226 (1995). https://doi.org/10.1007/BF00262959
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DOI: https://doi.org/10.1007/BF00262959