caption: The image shows a diagram of a semiconductor membrane with the words "electrolyte" and "kathodenfolie" written on it. The diagram is composed of a series of interconnected lines and shapes, with each line representing a different component of the membrane. The lines are labeled with the names of the components, such as the electrolyte, the kathode, and the stromzufuhrung. The colors used in the diagram are mostly shades of blue and green, with some yellow and red accents.