Abstract
The present invention provides the adjustable end plate structures for the fuel cells, which are applied in a fuel cell system to lock a fuel cell pile between two end plates via a tying lock device. An adjustable device structure is arranged on the two end plates for adjusting and controlling the bent deformation of the two end plates. A connection device is connected to the adjustable device structure. Therefore, an adjustable end plate device structure of cell battery is constructed to enable the end plate to bear suitable force or torque, thereby maintaining the flatness of the end plate to enhance the airtight capability of the fuel cell system.