Patent ID: 8993135
Filing Date: 2015-03-31
Classification: H01M,Y02E

Abstract:
1. A fuel cell stack comprising: an anode electrode layer comprising an anode electrode portion and an anode electrode frame; an anode double sided adhesive layer having a non-adhesive anode gas diffusion layer in an opening therein, said double sided adhesive layer adhered on one side to the anode electrode frame such that a portion of the anode electrode is in contact with the anode gas diffusion layer; an ion exchange membrane layer having an ion exchange membrane in an opening therein, said ion exchange membrane aligned with the non-adhesive anode gas diffusion layer in the opening in the anode double sided adhesive layer, said ion exchange membrane layer adhered on a first side to the side of the anode double sided adhesive layer opposite the anode electrode layer; a cathode double sided adhesive layer having a non-adhesive cathode gas diffusion layer in an opening therein, said cathode gas diffusion layer aligned with the ion exchange membrane, said double sided adhesive layer adhered on one side to a second side of the ion exchange membrane; and a cathode electrode layer comprising a cathode electrode portion and a cathode electrode frame adhered to the cathode double sided adhesive layer having a non-adhesive cathode gas diffusion layer in an opening therein, on the side opposite the ion exchange membrane, such that a portion of the cathode electrode is in contact with the cathode gas diffusion layer; wherein each of the layers are adhered together as parallel adjacent planes rolled to form a gas tight cylindrical flexible fuel cell stack adhered around a rigid cylindrical support.