Electrochemical cell protected against self-discharge

摘要

The cell comprises a chemically active material 8 and a gas-diffusion electrode 10 in a casing formed by a box 2 and a lid 4 separated from each other by an insulating seal 6. An orifice 28 is provided in the box 2 to allow the gas absorbed or produced by the gas-diffusion electrode to pass. …According to the invention, a sheet 26, which is leaktight with respect to this gas, is arranged in the cell near the bottom of the box, to prevent self-discharge of the cell. …Application to gas cells, in particular in the medical field, and to zinc/air cells (batteries). … …