| abstract |
An object of the present invention is to provide a highly practical electrolyte solution which has high oxidation resistance and enables dissolution-precipitation of magnesium to proceed repeatedly and stably.The present invention relates to an electrolyte solution for a magnesium battery comprising a mixture of a compound represented by the general formula [1], a Lewis acid or a compound represented by the general formula [4], and a solvent; an electrochemical device containing the electrolyte solution; and a compound represented by the general formula [1].[In the general formula [1], X<sup>1</sup> represents a halogeno group, and R<sup>1</sup> represents an alkyl group having 1 to 10 carbon atoms, which may have a group represented by - SO<sub>3</sub>MgX<sup>2</sup> (X<sup>2</sup> represents a halogeno group); a haloalkyl group having 1 to 10 carbon atoms, which may have a group represented by -SO<sub>3</sub>MgX<sup>2</sup> (X<sup>2</sup> is the same as described above); an aryl group having 6 to 14 carbon atoms, which may have an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a halogeno group, or a group represented by -SO<sub>3</sub>MgX<sup>2</sup> (X<sup>2</sup> is the same as described above); or a biphenyl group which may have a group represented by -SO<sub>3</sub>MgX<sup>2</sup> (X<sup>2</sup> is the same as described above).] Mg [N(SO<sub>2</sub>R<sup>4</sup>)<sub>2</sub>]<sub>2</sub> [4](In the general formula [4], four R<sup>4</sup>'s each independently represent an alkyl group having 1 to 6 carbon atoms, a perfluoroalkyl group having 1 to 6 carbon atoms, a phenyl group, or a perfluorophenyl group.) |