| 摘要 |
Provided is a nonaqueous electrolyte battery which comprises a positive electrode, a negative electrode, a separator arranged between the positive electrode and the negative electrode, and a nonaqueous electrolyte. The positive electrode contains a positive electrode active material that contains LixNi1-a-bCoaMnbMcO2 (wherein 0.9 < x ≤ 1.25, 0 < a ≤ 0.4, 0 ≤ b ≤ 0.45, 0 ≤ c ≤ 0.1, and M represents at least one element selected from the group consisting of Mg, Al, Si, Ti, Zn, Zr, Ca and Sn). The separator has a pore volume within the range of from 0.9 cm3/g to 3 cm3/g (inclusive) in the pore diameter distribution as determined by a mercury intrusion method and an air permeability within the range of from 2 sec/100 ml to 15 sec/100 ml (inclusive) as determined by a Gurley method (JIS-P-8117), while containing a polyester. |
