The electrochemical cell (1) of the present invention is provided with a hermetic container (2) having a base member (10), a jointing material (12) fixed to the base member, and a lid member (11) welded on the base member via the jointing material, and in ...

A safety vent including: a vent 3 that allows gas generated inside a laminate type battery 2 to release to the outside, a gas permeated membrane 4 through which the gas permeates, and a housing case 5 that internally houses the vent 3 and the gas permeated...

An electrical storage device of the present invention is characterized in that a positive electrode, a negative electrode, a lithium electrode, and an electrolyte capable of transferring lithium ion is included, the lithium electrode is arranged to be out ...