| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonaqueous secondary battery excellent in charging/ discharging cycle characteristic by enhancing binding of a binder of a negative electrode. SOLUTION: This nonaqueous secondary battery has a negative electrode 2 using, as a negative-electrode active material, a carbon material capable of storing/exhausting lithium and forming a negative-electrode current collector out of a negative-electrode mix layer containing at least a carbon material and a binder, and a positive electrode 1 using, as a positive-electrode active material, a compound capable of reversively charging/discharging lithium. As the binder of the negative electrode 2, a mixture of a polymer having vinylidene fluoride as main monomer unit and a bismaleimide triazine resin is used. Preferably, the bismaleimide triazine resin is thermoset in the negative electrode. |
