Abstract

AbstractThe electrochemical performance of two Na2/3Ni1/3Mn2/3O2 samples, prepared through an oleic‐assisted emulsion procedure, is examined. The effect of cosurfactants with either short (methylamine) or long (octylamine) chains is determined for their applicability as cathode materials for sodium‐ion batteries. Their structural and morphological properties are studied by X‐ray diffraction and electron microscopy. The electrochemical performance is determined by cycling sodium half‐cells with the galvanostatic method. Particular interest is devoted to their kinetic properties evaluated by using impedance spectroscopy.

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