| 摘要 |
PURPOSE:To improve the safety of a sealed secondary battery. CONSTITUTION:A plural anode active material containers 12-1, 12-2 containing sodium 8 for anode active material are disposed in an anode chamber in a solid electrolyte tube 1, an anode collector 13 comprising shape memory alloy of which shape is changed by temperature is disposed between the anode active material containers 12-1, 12-2, and the anode collector 13 is connected to an anode cover 3. The shape of the anode collector 13 is changed by temperature, so supply of sodium to an inner wall of the solid electrolyte tube can be prevented at the time of a temperature rise to a battery actuation temperature, thereby the safety when the solid electrolyte tube is broken can be improved. |
