A seawater battery cell is disclosed. The seawater battery cell is coupled to a seawater battery module having a negative electrode and a positive electrode, a seawater battery module, a watertight structure for watertighting the negative electrode and the positive electrode from seawater, a first watertight connector part electrically connected to any one of the negative electrode and the positive electrode, and It may include a second water-tight connector portion electrically connected to the other of the negative electrode and the positive electrode, and coupled to the first watertight connector portion of the adjacent seawater battery cell. Accordingly, a seawater battery cell that can be completely submerged in seawater can be applied to various fields.
展开▼
