MAGNESIUM ION-CONTAINING NONAQUEOUS ELECTROLYTE, PROCESS FOR PRODUCING THE NONAQUEOUS ELECTROLYTE, AND ELECTROCHEMICAL DEVICE

摘要

A magnesium battery (10) comprises a negative electrode (1), a positive electrode (2), and an electrolyte (3). The negative electrode (1) is formed of metallic magnesium and may also be formed of an alloy. The positive electrode (2) is formed of, for example, a positive electrode active material, for example, a metal oxide or graphite fluoride ((CF)n). The electrolyte (3) is, for example, a magnesium ion-containing nonaqueous electrolyte prepared by dissolving magnesium chloride (II)(MgCl2) and dimethylaluminum chloride ((CH3)2AlCl) in tetrahydrofuran (THF). When magnesium is dissolved and precipitated with this electrolyte, the following reaction proceeds in a normal or reverse direction. [Chemical formula 1] formula The above constitution can realize the provision of a magnesium ion-containing nonaqueous electrolyte, which has a high oxidation potential and can satisfactorily extract excellent properties as a negative electrode active material possessed by metallic magnesium, and a process for producing the nonaqueous electrolyte, and a high-performance electrochemical device using the nonaqueous electrolyte.