The tightening clamps are multifunctional and ensure the transmission of the electric current generated by the fuel cell stack, the insulation of the different ducts and passage openings of the operation fluid of the fuel cell stack, and the tightening of the stack itself. Each clamp comprises a single part, the up...

The invention relates to a method for determining a state of health of an electrochemical device in particular having improved reliability. Said method in particular consists of: - applying (10) to said electrochemical device an input signal comprising electrical excitations of different categories, and measuring...

The invention relates to a method for more precisely characterizing an electrical system by impedance spectrometry. Said method consists of: applying an input signal to said electrical system that comprises a sequence of sinusoidal perturbations, so as to scan a primary series (A) of frequencies; - measuring an ou...

THE PRESENT INVENTION RELATES TO A DEVICE (10) FOR STORING AND RESTORING ELECTRICAL ENERGY COMPRISING A CHAMBER (100) IN WHICH WATER ELECTROLYSIS MEANS (110), A FUEL CELL (120), AND MONITORING/CONTROL MEANS (130) FOR MONITORING THE OPERATION OF SAID DEVICE (10) IN THE FUEL CELL MODE OR THE ELECTROLYZER MODE ARE ARRA...