| abstract |
A nonaqueous electrolyte battery capable of improving life characteristics is provided. A non-aqueous electrolyte battery including a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte. The positive electrode 6 is composed of Li x Ni 1-ab Co a Mn b M c O 2 (0.9 <x ≦ 1.25; 0 <a ≦ 0.4; 0 ≦ b ≦ 0.45; 0 ≦ c ≦ 0. .1; M contains a positive electrode active material 6b containing one or more elements selected from Mg, Al, Si, Ti, Zn, Zr, Ca and Sn. In the separator, the pore volume in the pore diameter distribution by mercury intrusion method is in the range of 0.9 to 3 cm 3 / g, and the air permeability by gurley method (JIS-P-8117) is in the range of 2 to 15 sec / 100 ml. And a non-aqueous electrolyte battery containing polyester. [Selection] Figure 2 |