NON-AQUEOUS SECONDARY BATTERY

A non-aqueous secondary battery including an electrolyte solution that contains a lithium salt and a non-aqueous solvent, a positive electrode, and a negative electrode, wherein a basis weight of a positive-electrode active material layer included in the positive electrode is 8 to 100 mg/cm 2 , and/or, a basis weight of a negative-electrode active material layer included in the negative electrode is 3 to 46 mg/cm 2 , and wherein the electrolyte solution has an ion conductivity at 25°C of 15 mS/cm or more.