Method for the dry production of a membrane electrode unit, membrane electrode unit, and roller arrangement

US9365020B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Armin Datz · Baiersdorf, DE
• Klaus Dennerlein · Erlangen, DE
• Carola Kuehn · Nuremberg, DE
• Andreas Reiner · Pocking, DE
• Werner Straub · Prüm, DE

Key dates

• Filing date: Aug 16, 2012
• Grant date: Jun 14, 2016
• Expiry date: Nov 15, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P70/50
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A method for the dry production of a membrane-electrode unit includes assembling a layered configuration including a centrally positioned membrane produced by extrusion and pre-dried at a temperature between 80° C. and 100° C. for 15 min to 30 min, a substrate-electrode unit on each side of the membrane having an electrode layer applied to a substrate, an optional frame around each substrate-electrode unit for fixing the substrate-electrode unit, and two separating films on outer sides. The configuration is pressed together between two laminating rollers so that a pressure connection is produced at least between the membrane and the electrode layers. A short production time is achieved because it is not necessary to keep the membrane moist at high temperatures under pressure. A membrane electrode unit and a roller configuration are also provided.