METHOD OF FABRICATING SECONDARY BATTERY

摘要

Provided is a method of fabricating a secondary battery including a battery case and an electrode plate set housed in the battery case. The electrode plate set includes positive and negative electrode plates and a separator interposed therebetween. The electrode plate set is impregnated with non-aqueous electrolyte. The method includes the steps of: replacing air in the battery case with gas having an Ostwald solubility coefficient of 2.0 or more in the non-aqueous electrolyte; reducing the pressure in the battery case after the replacement with the gas; and introducing the non-aqueous electrolyte into the depressurized battery case.