| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent a secondary battery from being exposed to a high- temperature atmosphere, when an electric vehicle loaded with the charged secondary battery is left in the high-temperature atmosphere, and to suppress lowering of capacity to extend the life span. SOLUTION: This method protects the secondary battery for an electric vehicle, when the electric vehicle having the secondary battery 1, a temperature detecting means 2 detecting the temperature of the secondary battery 1, and a cooling means 3 cooling the secondary battery 1 is left in a high-temperature atmosphere. The method comprises a process of detecting the temperature of the secondary battery 1 by the temperature detecting means 2, and a process of activating the cooling means 3 to cool the secondary battery 1 when the detected temperature of the secondary battery 1 is higher than the prescribed temperature.</p> |
