| 摘要 |
PURPOSE: To provide a battery which can be stored or used in a high- temperature environment, a high-temperature and high-humidity environment or the like by enhancing the heat resistant performance of a gasket material, an electrolyte and a separator material in a nonaqueous electrolyte battery in which lithium is adopted as a negative electrode active material and graphite fluoride is adopted as a positive electrode active material. CONSTITUTION: A perfluoroalkoxyresin(PFA) resin is used for a gasket material and lithium salt is dissolved into an organic solvent having the boiling point of not less than 170 deg.C for an electrolyte and a glass fiber nonwoven fabric is used for the material of a separator 4. Thereby, a battery is obtained which can be stored or used in a high-temperature environment, a high-temperature and high-humidity environment or the like. Particularly, the average diameter of the fiber of the glass nonwoven fabric used for the material of the separator 4 is made not more than 2μm and a metsuke weight is made 5.0 to 9.0g/m<2> and an average hole diameter is made 3.0 to 7.5μm. Thereby, a liquid leakage at the time of sealing a battery can be prevented, so that a battery having stable discharge characteristic may be obtained.
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