| 摘要 |
PROBLEM TO BE SOLVED: To provide a coin-shaped (button-shaped) nonaqueous electrolyte secondary battery capable of resisting reflow temperature. SOLUTION: LiCoO2 or LiNiO2 is used as a positive-electrode active material, a molybdenum oxide expressed by a general expression of MoOx (2<=x<=3) or iron sulfide is used for a negative electrode, a nonaqueous solvent is used having a boiling point of 200 deg.C or higher at ordinary temperatures, a substance containing fluorine is used as a supporting salt to form an electrolyte, glass fiber or a resin having a thermal deformation temperature of 230 deg.C or higher is used for a separator, and for a gasket, a resin having a thermal deformation temperature of 230 deg.C or higher is used to resist a reflow temperature and not to deteriorate battery performance in combination with electrodes in this nonaqueous electrolyte secondary battery. |
