FLOW BATTERY AND CELL STACK

The present disclosure provides a flow battery and a cell stack. The cell stack includes:a first end plate (11); a second end plate (12); and at least one cell module arranged between the first end plate (11) and the second end plate (12). Each cell module includes a first flow channel end plate (21), a second flow channel end plate (22) arranged opposite to the first flow channel end plate (21), and single-cell assemblies arranged between the first flow channel end plate (21) and the second flow channel end plate (22). The single-cell assemblies include at least three hermetically-assembled cell assemblies, the first flow channel end plate (21) is provided with arch-like flow channels, the second flow channel end plate (22) is provided with arch-like flow channels, and each arch-like flow channel is provided with a flow channel aperture (263) in communication with the at least three hermetically-assembled cell assemblies.