Nonaqueous electrolyte secondary battery

A nonaqueous electrolyte secondary battery comprising a positive electrode containing a positive electrode active material, a negative electrode including a negative electrode mix layer disposed on a negative electrode collector, and a nonaqueous electrolyte,

• wherein the positive electrode active material contains a titanium lithium complex oxide that has a lattice shrinkage in charged state of 98.5% or less,
• the negative electrode mix layer contains a polyacrylic acid or a salt thereof and includes a first layer and a second layer disposed successively from the negative electrode collector,
• each of the first layer and the second layer contains a carbon-based negative electrode active material,
• the ratio (B/A) of the D-band/G-band ratio (B) of the Raman spectrum of the second layer to the D-band/G-band ratio (A) of the Raman spectrum of the first layer is 2 to 10, and
• the concentration of the polyacrylic acid or a salt thereof in the first layer is higher than the concentration of the polyacrylic acid or a salt thereof in the second layer.