NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

The purpose of the present disclosure is to provide a nonaqueous electrolyte secondary battery that has excellent cycle characteristics. A nonaqueous electrolyte secondary battery according to one embodiment of the present disclosure is provided with: an electrode body that comprises a positive electrode, a negative electrode and a separator; and a nonaqueous electrolyte. A mixture layer of the negative electrode contains a negative electrode active material, at least either one of carboxymethyl cellulose or a salt thereof, and at least either one of sorbic acid or a salt thereof; and the content of the sorbic acid and/or a salt thereof is 1,500 ppm or less relative to the mass of the mixture layer.