To obtain a non-aqueous solvent secondary battery, especially a coin- type Li secondary battery, whose working voltage is 1.5 grade and which is excellent in charge and discharge cycle life characteristics.

This non-aqueous solvent secondary battery is equipped with a positive electrode 6 having a positive electrode mix, containing Li4/3Ti5/3O4 powder having secondary particle sizes of 10-100 μm, carbon material powder and a fluoric resin as indispensable components, and with a negative electrode 4 having a negative electrode mix containing carbon material in which Li stored. In the positive electrode mix of this non-aqueous solvent secondary battery, the content of the carbon material powder is 5-15 wt.% and the content of the fluoric resin is 3-6 wt.%, and also the density of the positive electrode 6 is 1.95-2.05 g/cm3.