| 摘要 |
PURPOSE:To provide a chemical battery with safety mechanism capable of preventing gas explosion or the like of the battery from occurring while suppressing abnormal reaction of the battery. CONSTITUTION:A chemical battery 10 has a battery reaction part 15, positive pole terminal 16 and a battery vessel 41 concurrently serving as a negative pole terminal. A drive member 21 actuated in response to a gas pressure or reaction heat, at the time of abnormal reaction, has a holding mechanism 25 having an elastic member 251 for interrupting a current and also holding this condition, and has a gas emitting member. Short-circuit between the positive pole terminal 16 and the battery vessel 41 is preferable for the drive member 21 after current interruption and it is preferable to provide a valve member 301 for reclosing a gas passage 47 after gas emission. |
