Solid Oxide Fuel Cells Science and Engineering: Fundamentals, Materials, and Technologies is a comprehensive introduction to the fundamentals of solid oxide fuel cells. In addition to systematically reviewing the science and technologies of solid oxide fuel cells, the book provides numerical simulations, engineering applications and other important guidance on the commercialization and engineering of solid oxide fuel cells. The opening chapters of the book systematically explain the fundamentals, key emerging materials and technologies of solid oxide fuel cells, including surface chemistry and segregation, and oxygen reduction and fuel (such as hydrogen) oxidation reactions. It then examines the latest developments of cathode and anode materials as well as the robust nanostructured electrodes fabricated by innovative approaches such as exsolution for efficient and durable solid oxide fuel cells. The development of solid oxide fuel cells stacks and systems are also explained within the context of practical application. Finally, the book critically evaluates the development and fundamental issues of reversible solid oxide cells, as a promising technology for energy storage and regeneration. Throughout the book, there is a focus on increasing the theoretical and practical efficiency of solid oxide fuel cells, such as by activity/stability towards high power densities and increasing device lifetimes for commercialization.