Patent ID: 6165332
Filing Date: 2000-12-26
Classification: C25B,H01M,Y02E

Abstract:
Electrochemical half cell (1), comprising at least one electrode space (3, 15) for receiving an electrolyte (100), a gas space (2), and at least one gas diffusion electrode (14) as anode or cathode and separating the gas space (2) and electrode space (3, 15), in which the gas space (2) is subdivided into two or more superimposed gas pockets (2a, 2b, 2c, 2d) that are separated from one another and have an opening (7) for the electrolyte (100) so that the pressure on each gas pocket (2a, 2b, 2c, 2d) is in equilibrium via an opening (7) for the electrolyte (100) with the pressure of the liquid column of the electrolyte (100) in the corresponding part (15) of the electrode space (3, 15) in front of the gas diffusion electrode (14), wherein the gas inflow (7) and the gas outflow (12a, 12b, 12c, 12d) of the individual gas pockets (2a, 2b, 2c, 2d) are spatially separated from one another and the gas inflow (7) and the gas outflow (12a, 12b, 12c, 12d) are arranged laterally displaced from one another in the individual gas pockets (2a, 2b, 2c, 2d) so that there is a lateral flow of the electrode gas in the gas pocket (2a, 2b, 2c, 2d).