NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

To provide a nonaqueous electrolyte secondary battery in which a capacity ratio between a positive electrode and a negative electrode is good and liquid injection properties are enhanced.SOLUTION: A nonaqueous electrolyte secondary battery 100 includes an electrode assembly 20a including a positive electrode 22, a negative electrode 24, and a separator 26. The positive electrode 22 includes positive electrode active material layers 22a formed on both surfaces of a positive electrode core 22c, and the negative electrode 24 includes negative electrode active material layers 24a formed on both surfaces of a negative electrode core 24c. The negative electrode active material layer 24a includes a first area 24r between an end side 24e and a position 5 mm away from the end side 24e in a width direction, and an end part 22e of the positive electrode 22 is opposed to at least a part of the first area 24r. Regarding a thickness of the positive electrode active material layer 22a, a thickness T1 at a central part of the positive electrode 22 and a thickness T2 at the end part 22c of the positive electrode 22 satisfy 0.95