| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a secondary battery system which comprises a current interruption mechanism and is capable of suppressing generation of high voltage.SOLUTION: A secondary battery system comprises a sealed battery 2 and a control unit 3000 for controlling the sealed battery 2. The sealed battery 2 includes: a current interruption mechanism 100 as a first current interruption mechanism of a pressure type; a second current interruption mechanism 1000 which is activated at lower pressure than the operation pressure of the first current interruption mechanism 100; and a resistor 150 as a high resistance current path which has resistance higher than that of the second current interruption mechanism 1000 and is arranged so as to be parallel with the second current interruption mechanism 1000. The control unit 3000 controls input and/or output to a power generation element, by detecting rise of resistance caused by a current path's change to a path including the resistor when the second current interruption mechanism 1000 is activated.</p> |
