Title: Silver gas diffusion electrode for use in air containing CO2, and method for the production thereof
Application Number: 200580024368 Application Date: 2005.07.09
Publication Number: 1989642 Publication Date: 2007.06.27
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H01M4/86;H01M4/88;H01M4/90;C25B11/00
Applicant(s) Name: Uhde GmbH Address:
Inventor(s) Name: Beckmann Roland;Dulle Karl Heinz;Woltering Peter;K
Attorney & Agent: liumeng hai
Abstract:
    The invention relates to a method for the production of a gas diffusion electrode from a silver catalyst on an PTFE-substrate. The pore system of the silver catalyst is filled with a moistening filling agent. A dimensionally stable solid body having a particle size greater than the particle size of the silver catalyst is mixed with the silver catalyst. Said compression-stable mass is formed in a first calendar in order to form a homogenous catalyst band. In a second calendar, an electoconductive discharge material is embossed in the catalyst band, and heating takes places between the first and the second calendar by means of a heating device, wherein at least parts of the moistened filling agent are eliminated. The invention also relates to a gas diffusion electrode which is produced according to said method.
Time: 9
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