A nonaqueous electrolyte secondary battery, comprising: a container member comprising a gas relief structure; a negative electrode accommodated in the container member and comprising a negative electrode mixture layer, the negative electrode mixture layer comprising a titanium-containing oxide comprising lithium titanate having a spinel-type crystal structure; a positive electrode accommodated in the container member; and a nonaqueous electrolyte accommodated in the container member, wherein the negative electrode mixture layer further includes a compound containing Mn and a CO 3 moiety, wherein an X-ray photoelectron spectroscopy spectrum obtained by X-ray photoelectron spectroscopy measurement of the negative electrode mixture layer includes: a peak belonging to Ti; a peak belonging to Mn; a peak belonging to C constituting a CO 3 moiety; and a peak belonging to C constituting a CO 2 moiety and/or a peak belonging to C constituting a CO moiety, wherein a sample is prepared according to the section "preparation of sample" as specified in the description prior to conducting the X-ray photoelectron spectroscopy measurement, wherein the X-ray photoelectron spectroscopy measurement uses AlKα ray diffracted by a single crystal as an exciting X-ray source, and wherein abundance ratios R Ti, R Mn, R A and R B obtained from the respective peak-area ratio obtained from the X-ray photoelectron spectroscopy spectrum satisfy the following relational expressions: 0.01 ≤ R Mn / R Ti ≤ 0.2 3 ≤ R A / R Mn ≤ 50 and 0.5 ≤ R A / R B ≤ 5 where R Ti is an abundance ratio of Ti, R Mn is an abundance ratio of Mn, and R A is an abundance ratio of C constituting the CO 3 moiety, and R B is a sum of an abundance ratio R C of C constituting the CO moiety and an abundance ratio R D of C constituting the CO 2 moiety, wherein R Ti is obtained from an area A Ti of a Gaussian function representing a component derived from Ti 4+ having a peak in a binding energy region of 458 to 459 eV belonging to the electrons (Ti 2p 3/2), R Mn is obtained from an area A Mn being the sum of the areas of four superposed Gaussian functions having a peak in a binding energy region of 638 to 647 eV belonging to the electrons (Mn 2p 3/2), R A is obtained from an area A CO3 of a Gaussian function having a peak in a binding energy region of 290 to 291 eV, R C is obtained from an area A CO of a Gaussian function having a peak in a binding energy region of 287 to 288 eV, and R D is obtained from an area A CO2 of a Gaussian function having a peak in a binding energy region of 288 to 289 eV. a container member comprising a gas relief structure; a negative electrode accommodated in the container member and comprising a negative electrode mixture layer, the negative electrode mixture layer comprising a titanium-containing oxide comprising lithium titanate having a spinel-type crystal structure; a positive electrode accommodated in the container member; and a nonaqueous electrolyte accommodated in the container member, wherein the negative electrode mixture layer further includes a compound containing Mn and a CO 3 moiety, wherein an X-ray photoelectron spectroscopy spectrum obtained by X-ray photoelectron spectroscopy measurement of the negative electrode mixture layer includes: a peak belonging to Ti; a peak belonging to Mn; a peak belonging to C constituting a CO 3 moiety; and a peak belonging to C constituting a CO 2 moiety and/or a peak belonging to C constituting a CO moiety, wherein a sample is prepared according to the section "preparation of sample" as specified in the description prior to conducting the X-ray photoelectron spectroscopy measurement, wherein the X-ray photoelectron spectroscopy measurement uses AlKα ray diffracted by a single crystal as an exciting X-ray source, and wherein abundance ratios R Ti, R Mn, R A and R B obtained from the respective peak-area ratio obtained from the X-ray photoelectron spectroscopy spectrum satisfy the following relational expressions: 0.01 ≤ R Mn / R Ti ≤ 0.2 3 ≤ R A / R Mn ≤ 50 and 0.5 ≤ R A / R B ≤ 5 where R Ti is an abundance ratio of Ti, R Mn is an abundance ratio of Mn, and R A is an abundance ratio of C constituting the CO 3 moiety, and R B is a sum of an abundance ratio R C of C constituting the CO moiety and an abundance ratio R D of C constituting the CO 2 moiety, where R Ti is an abundance ratio of Ti, R Mn is an abundance ratio of Mn, and R A is an abundance ratio of C constituting the CO 3 moiety, and R B is a sum of an abundance ratio R C of C constituting the CO moiety and an abundance ratio R D of C constituting the CO 2 moiety, wherein R Ti is obtained from an area A Ti of a Gaussian function representing a component derived from Ti 4+ having a peak in a binding energy region of 458 to 459 eV belonging to the electrons (Ti 2p 3/2), R Mn is obtained from an area A Mn being the sum of the areas of four superposed Gaussian functions having a peak in a binding energy region of 638 to 647 eV belonging to the electrons (Mn 2p 3/2), R A is obtained from an area A CO3 of a Gaussian function having a peak in a binding energy region of 290 to 291 eV, R C is obtained from an area A CO of a Gaussian function having a peak in a binding energy region of 287 to 288 eV, and R D is obtained from an area A CO2 of a Gaussian function having a peak in a binding energy region of 288 to 289 eV.