An electrode (positive electrode ) has a collector layer (positive electrode collector layer ), an active material layer (positive electrode active material layer ), and an intermediate layer (). The active material layer (positive electrode active materia...

An electrode (positive electrode ()) includes a current collector layer (positive electrode current collector layer ()), an active material layer (positive electrode active material layer ()) that is stacked on and joined to the current collector layer and...

A battery including a gas discharge mechanism that discharges when a gas pressure in a battery container reaches a predetermined value. The gas discharge mechanism includes a first gas discharge passage connected to an inner portion side of the battery con...