This book is a comprehensive review of high-temperature polymer electrolyte membrane fuel cells (PEMFCs). PEMFCs are the preferred fuel cells for a variety of applications such as automobiles, cogeneration of heat and power units, emergency power and portable electronics. The first 5 chapters of the book describe rationalization and illustration of approaches to high temperature PEM systems. Chapters 6 - 13 are devoted to fabrication, optimization and characterization of phosphoric acid-doped polybenzimidazole membranes, the very first electrolyte system that has demonstrated the concept of and motivated extensive research activity in the field. The last 11 chapters summarize the state-of-the-art of technological development of high temperature-PEMFCs based on acid doped PBI membranes including catalysts, electrodes, MEAs, bipolar plates, modelling, stacking, diagnostics and applications.

This textbook covers essential electrochemistry and materials science content and provides an extensive collection of examples in order to bridge the gap between engineering students' basic knowledge and the concrete skills they need to handle practical problems in fuel cells. The book starts with an introduction to the basic thermodynamics and electrochemistry principles and techniques in fuel cells. It subsequently discusses fuel cell operation principles, electrocatalysts, electrode materials, cell and system configuration and technologies in low-temperature fuel cells such as alkaline fuel cells and proton exchange membrane fuel cells, and in high-temperature fuel cells including solid oxide and molten carbonate fuel cells. Other energy conversion and storage technologies such as supercapacitors, batteries and electrolysis are also covered. A special chapter on laboratory experiments with fuel cells is also included, which can be conducted in conjunction with classroom teaching. Each chapter includes problems and exercises. The book provides students with an engineering background essential information on the basic thermodynamics, electrochemistry and materials of fuel cells, the most efficient and environmentally friend energy conversion technologies, all in a single book.