The ability of a carbon felt the need to make the shape of the cell is limited to a schematic on. Which is difficult to navigate in a variety of applications (flexible, thickness).
Moreover, reliance ability of carbon felt, then make the shape of a cell is limited to look strong, phaen apply in a variety of jobs (flexible, thickness)
Again, relying on the ability of the carbon felt, and shape of a cell is limited, there is a plate, which is difficult to apply to an application in a wide range of applications (flexible, thickness).