ELECTROCHEMICAL MODULE, ELECTROCHEMICAL DEVICE, AND ENERGY SYSTEM

An object is to provide an electrochemical module capable of suppressing gas leakage, an electrochemical device, and an energy system. An electrochemical module M includes: a stack obtained by stacking, in a predetermined stacking direction, a plurality of electrochemical elements having a configuration in which an electrode layer, an electrolyte layer, and a counter electrode layer are formed along a substrate, via an annular sealing portion through which first gas that is one of reducing component gas and oxidative component gas flows; a container 200 that includes an upper cover 201 for pressing a first flat face in the stacking direction of the stack and a lower cover 203 for pressing a second flat face on a side opposite to the first flat face, the stack being sandwiched between the upper cover 201 and the lower cover 203; and a pressing mechanism 400 that presses a portion to which the annular sealing portion is attached against the container 200 in the stacking direction.