ELECTROLYTE, ALKALI-ION SECONDARY BATTERY INCLUDING THE SAME, AND METHOD OF PREPARING THE ALKALI-ION SECONDARY BATTERY

An electrolyte, an alkali-ion secondary battery including the electrolyte, and the alkali-ion secondary battery. The electrolyte may include: a primary solvent system including a nitrile solvent represented by Formula 1 and one or more linear carbonate solvents; and a secondary solvent system including two or more cyclic carbonate solvents. The content of the primary solvent system may be about 90 parts by weight to about 99.9 parts by weight, based on 100 parts by weight of total solvent, and the content of the nitrile solvent may be about 20 parts by weight to about 70 parts by weight, based on 100 parts by weight of the total solvent.