| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealed battery in which electrification to an electrode body can be broken reliably during overcharge generating gas from many gas generation agents, while maintaining the strength of a positive electrode active material layer, and to provide a manufacturing method therefor.SOLUTION: A sealed battery 1 includes, in a battery case 80, an electrode body 10 having a positive electrode plate 20 containing a positive electrode active material layer 21, and a current interruption mechanism 62 for interrupting a current flowing through the electrode body when the internal pressure Pi of the battery case exceeds a working pressure Pf. A first gas generating agent G1 generating gas when the sealed battery 1 is overcharged is born on the positive electrode active material layer formed previously. |
