| abstract |
A positive electrode plate having a thickness of 25 μm or more composed of an inorganic material containing a positive electrode active material in an oxide form, a negative electrode plate having a thickness of 25 μm or more composed of an inorganic material containing a negative electrode active material in an oxide form, and an inorganic solid. A secondary battery including an electrolyte layer and charged / discharged at a temperature of 100 ° C. or higher is provided. According to such a secondary battery, rapid charge / discharge can be realized with a high cycle capacity retention rate while increasing the capacity of the secondary battery. |