Patent ID: 9133555
Filing Date: 2015-09-15
Classification: C25B,H01M,Y02E

Abstract:
1. An ion-exchange membrane cell stack subassembly comprising: an ion-exchange membrane; a planar frame component having a frame body bounding the ion-exchange membrane at a through opening coinciding with a flow field region; a port in the planar frame component for axial flow of fluid through the planar frame component; a planar elastomeric gasket seal for sealing the planar frame component to an adjacent planar component on a side opposite the ion-exchange membrane, the planar elastomeric gasket seal having at least one lobe that has an interior recess extending radially between the flow field region and the port for providing fluid communication between the flow field region and the port within the interior recess; and a screen retained by molding in the planar frame component that provides a flat surface for supporting the ion-exchange membrane; and wherein a seal insert is fitted to the planar frame component for improving transmission of pressure through the stack radially inwardly of the port in the planar frame component, and wherein the seal insert is disposed within the interior recess and circumferentially spaced from adjacent walls of the lobe that define the interior recess to form within the interior recess on respective circumferential sides of the seal insert a pair of radial flow passages that effect communication between the port and a side of the ion-exchange membrane interiorly of the frame component.