| 摘要 |
<p>Provided is a magnesium ion secondary battery which has good charge/discharge characteristics, while having excellent heat resistance and handling properties. A magnesium ion secondary battery which comprises a positive electrode, a negative electrode and an electrolyte solution, and which is characterized in that: the electrolyte solution contains a mixture of a dialkyl glycol ether represented by general formula (1) and a magnesium compound wherein two same ligands are bonded to a magnesium atom; and the ligands have a hydrophobic structure at the position farthest from the magnesium atom. (In the formula, each of R1 and R2 independently represents an alkyl group having 1-6 carbon atoms, a phenyl group or a cyclohexyl group, and at least some hydrogen atoms in the alkyl group, the phenyl group and the cyclohexyl group may be substituted by fluorine atoms; and n represents an integer of 1-12.)</p> |
