摘要 |
In order to obtain a non-aqueous electrolyte secondary battery having a high capacity and excellent charge/discharge cycle characteristics, a halogen-containing organic magnesium compound represented by the formula (1): RMgX, where R is an aliphatic hydrocarbon group or an aromatic hydrocarbon group, X is fluorine atom, chlorine atom, bromine atom or iodine atom; or the formula (2): RMgY, where R is an aliphatic hydrocarbon group or an aromatic hydrocarbon group, Y is -ClO4<->, -BF4<->, -PF6<-> or -CF3SO3<-> is added to the non-aqueous electrolyte.
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