| 摘要 |
PURPOSE:To obtain a battery having a large discharge capacity and excellent life characteristic by using an electrolyte containing an additive material salt for suppressing the formation of a passivated film of Al in a nonaqueous electrolyte battery using Al or Al alloy as a negative electrode. CONSTITUTION:In a nonaqueous electrolyte battery formed of a negative electrode consisting of Al or Al alloy, a positive electrode, a solvent and Al salt as a solute, a nonaqueous electrolyte contains An additive metal salt for suppressing the formation of the passivated film of Al. As the additive metal salt, aluminates can be used, and at least one selected from the group consisting of NaAlO2, Mg(AlO2)2, Ca(AlO2)2, Ba(AlO2)2, Co(AlO2)2, Sr(AlO1)2, and La(AlO2)2 is used. The content of the aluminate in the nonaqueous electrolyte is 0.001-0.1mol/l. |
