Polymer Electrolytes with High Ionic Concentration for Fuel Cells and Electrolyzers

As fuel cells and electrolyzers require higher performance and durability, the design aspects of polymer electrolytes continue to evolve. One distinctive trend in achieving a remarkably improved performance of electrochemical devices is to equip polymer electrolytes with high ionic concentration. This Review presents recent implementations of polymer electrolytes with a high ionic concentration in electrochemical devices. The synthetic approaches, benefits in device performance, challenges, and prospects of polymer electrolytes are summarized. The goal of this article is to explain the working principles of polymer electrolytes with a high acid concentration in high-performing fuel cells and electrolyzers, to survey recent achievements, and to address remaining technical issues. As well as informing polymer scientists, this Review may generate interest in the broader community of emerging fields to make use of these promising materials in tackling tough scientific challenges.

Automated summary

As fuel cells and electrolyzers demand higher performance and durability, the design of polymer electrolytes is evolving with a focus on increasing ionic concentration. This review highlights recent advancements in the use of high ionic concentration polymer electrolytes in electrochemical devices, summarizing synthetic approaches, performance benefits, challenges, and prospects. The goal is to explain the working principles of these electrolytes in high-performing fuel cells and electrolyzers, while also generating interest in utilizing these materials in tackling tough scientific challenges in emerging fields.