| abstract |
Disclosed is a non-aqueous electrolyte for a lithium secondary cell or a lithium-ion capacitor in which a lithium salt is dissolved at a specific amount in a non-aqueous solvent, wherein: the non-aqueous solvent contains specific amounts of ethylene carbonate, propylene carbonate, dimethyl carbonate, methylethyl carbonate, and a fluorinated chain ester; the total amount of ethylene carbonate and propylene carbonate contained in the non-aqueous solvent is in a specific range; the total amount of dimethyl carbonate and the fluorinated chain ester contained is in a specific range; and the non-aqueous electrolyte has a flash point of 20°C or higher. Also disclosed is a non-aqueous electrolyte for a lithium secondary cell or a lithium-ion capacitor in which a lithium salt is dissolved at a specific amount in a non-aqueous solvent, wherein: the non-aqueous solvent contains specific amounts of ethylene carbonate, propylene carbonate, dimethyl carbonate, methylethyl carbonate, and ethyl propionate; the total amount of ethylene carbonate and propylene carbonate contained in the non-aqueous solvent is in a specific range; the total amount of dimethyl carbonate and ethyl propionate contained is in a specific range; and the non-aqueous electrolyte has a flash point of 20°C or higher. |