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The nickel hydroxide electrode from the solid-state chemistry point of view

Our understanding of the behaviour of the nickel hydroxide electrode can be improved significantly by using a solid-state chemistry approach in which knowledge of its structure plays the main role. These studies can be carried out successfully by using relatively well crystallized materials, obtained by ‘chimie douce’ reactions from high-temperature oxides, which play the role of model materials. The α/γ cycling and the effect of cations substituted for nickel on the electrode behaviour has been characterized in detail.