| 摘要 |
PROBLEM TO BE SOLVED: To provide a polymer lithium secondary battery which has an over- current restraining mechanism breaking current in response to the temperature rise accompanying over-charging process, and further, can restrain firing even under exposure to an extremely high temperature in a state of charging or over-charging, without jeopardizing the battery characteristics. SOLUTION: A mechanism for breaking electric conduction of a cathode or an anode when the battery temperature exceeds 60 deg.C and another mechanism for short-circuiting the cathode and the anode when the surrounding temperature of battery exceeds 70 deg.C are constituted with the use of a shape-memory alloy. |
