SECONDARY BATTERIES – ZINC SYSTEMS | Zinc Electrodes: Overview

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This article provides an overview of zinc electrodes used in different types of batteries from the perspective of the materials, the structural and morphological characteristics of the electrodes, and their relationship to electrochemical activity. Specifically, the use of various forms of zinc materials, such as powder, fibers, dendrites, and pellets, for primary alkaline, rechargeable, zinc–air batteries and fuel cells is discussed. The structure and morphology of the porous electrode are analyzed with respect to electrode reactivity. The transformation of the morphology of zinc material during charging and discharging of the electrodes is discussed in terms of its impact on shape change and life of secondary zinc electrodes. Finally, the scope for the improvement of zinc electrodes for application in high-power systems is discussed.

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