Safety valve and an electrochemical device

A valve 3 to dissipate gas to the outside generated inside the laminated battery 2, a gas permeable membrane 4 that transmits gas, as well as accommodating the valve 3 and the gas permeable membrane 4 to the inside of the laminated battery 2 a housing case 5 that is attached to the gas discharge port 24 formed in the laminate battery case 21, a safety valve comprising a.