IRRADIATED IONOMERS IN PRESSURE TOLERANT GAS DIFFUSION ELECTRODES

摘要

Gas diffusion electrodes (12) and gas generating or consuming electrochemical cells (10) utilizing the same. The electrode (12) comprises an electronically conductive and electrochemically active porous body defining respective gas and electrolyte contacting surfaces (15, 17), with an ionomeric ionically conductive gas impermeable layer disposed over the electrolyte contacting surface (17). The layer comprises a hydrophilic ionic polymer cross-linked in situ on said active surface by exposure to an effective amount of high energy ionizing radiation.