| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealed battery in which electrification to an electrode body can be interrupted reliably by decomposing and polymerizing CHB added to an electrolyte efficiently during overcharge thereby generating more gas, and to provide a manufacturing method of such a sealed battery.SOLUTION: A sealed battery 1 includes an electrode body 10 having a positive electrode plate 20 in a battery case 80, an electrolyte 50 impregnating the electrode body, and a current interruption mechanism 62 which interrupts a current flowing through the electrode body when the internal pressure Pi of the battery case exceeds a working pressure Pf. The positive electrode plate has a membrane 22 derived from biphenyl, and the electrolyte contains cyclohexylbenzene 51. |
