ELECTROCHEMICAL CELL AND ELECTROCHEMICAL CELL MODULE

An electrochemical cell includes a first unit cell including a first electricity generator and a first casing containing the first electricity generator, a second unit cell including a second electricity generator and a second casing containing the second electricity generator, and an outer container containing the first unit cell and the second unit cell. The electrochemical cell further includes a liquid layer between the first casing and the second casing. The liquid layer is in direct contact with the first casing and the second casing.