| abstract |
According to one embodiment, there is provided an electrode. The nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a separator provided between the positive electrode and the negative electrode, and a nonaqueous electrolyte. The negative electrode contains as an active material a titanium composite oxide. A lithium absorption/release reaction potential of the titanium composite oxide is higher than 0.5 V vs. Li/Li + . The nonaqueous electrolyte contains at least one element selected from B and S. |