The present disclosure pertains to a multilayered membrane, such as an anion exchange membrane (AEM), optimized for use in various electrochemical devices. The AEM features a unique multilayered structure comprising a core layer and one or more surface layers, each designed to enhance the interface with the catalyst layer. The surface layers are distinguished by their different water uptake capacity, and increased adhesiveness, and better chemical stability compared to the core layer, attributes that are critical for improving ion transport and membrane performance. The surface layers also exhibit a lower degree of cross-linking and a higher ion exchange capacity (IEC) than the core layer. The versatile construction of the AEM allows for configurations tailored to specific applications, including electrolyzers, fuel cells, and reversible fuel cells. This disclosure promises significant advancements in electrochemical device technology, contributing to the development of efficient and sustainable energy solutions.

A method for production and processing of a framed proton-conducting membrane for a fuel cell, comprises: providing of the proton-conducting membrane and a frame comprising at least two media ports inserting the membrane into a recess of the frame, processing of at least one surface of the frame such that a first region exists with an increased force of adhesion for a joining by means of gluing, and at least one second region exists with a lesser force of adhesion than the increased force of adhesion.