| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power storage device having high safety. <P>SOLUTION: The power storage device 100 comprises a power storage cell 10 having an outer sheath 12 housing a positive electrode, a negative electrode and an electrolyte, and a cell case 30 holding the power storage cell 10. The outer sheath 12 comprises a body part 13, and a periphery part 14 provided around the body part 13. The periphery part 14 comprises a first part 15 held by the cell case 30 and a second part 16 serving as a relief valve for discharging a gas in the outer sheath 12, and the cell case 30 comprises an exhaust passage 32 exhausting the gas discharged from the second part 16 and extending along the periphery part 14. <P>COPYRIGHT: (C)2013,JPO&INPIT |
