PEM, ANION and MEA membranes for an electrolyzer

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The discussion centers on the complexities of various membranes used in fuel cells, particularly PEM, anion membranes, and MEA. The user seeks detailed information on the manufacturing process of PEM and its components, including the role of gas diffusion layers (GDL). They express a desire for comprehensive resources, such as books or articles, that explain how these technologies work rather than just assembling parts. Additionally, there is interest in comparing different types of fuel cells and electrolyzers. The user is looking for reliable sources to enhance their understanding of these topics.
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TL;DR Summary
Building electrolyzer.
Hello,
I wanted to build electrolyzer however during my research I encountered number of different membranes for fuel cells etc.. For example anion membrane , PEM , MEA etc. Have to admit I am getting lost in all of this and would like to know more.

I tried to do my own research and I got to point when I decided to find some information on forum.

From what I understand PEM is a full fuel cell membrane that includes GDL s. Anion membrane will keep oxygen and hydrogen separate. Here is my question. Where can I find some information how for example PEM is made and why?. Is there a book or place where I can find such information?. I don't want to buy pieces and put it together - would like to know exactly how it works. Appreciate help.
 
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This is just brief information and I am trying to find some more detail. For example why gdl is needed and what role does it play etc.. Also I am interested in comparison of different types of fuel cells as well as electrolyzers. Book or article?. Thanks
 

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