A non-aqueous electrolyte secondary cell can be charged at a high voltage of 4.3V or more and has excellent cycle characteristics and excellent high-temperature storage characteristics. The cell includes positive and negative electrodes capable of inserting and extracting lithium, and a non-aqueous electrolyte. The non-aqueous electrolyte contains a non-aqueous solvent, 1,3-dioxane and a dinitrile compound additives, and an electrolyte salt. The non-aqueous solvent contains ethylene carbonate in the range of 25% to 40% by volume under the conditions of 25° C. and 1 atm.