The worlds growing demand for power has created a need for new efficient and sustainable sources of energy and electricity. In recent years, fuel cells have become a highly-promising potential source of power for military, commercial and industrial uses. This book provides a survey of state of the art research in fuel cells, with in-depth coverage of the two types of fuel cell most likely to become commercialised: the high-temperature solid oxide fuel cell (SOFC) and the low-temperature polymer electrolyte membrane fuel cell (PEM). All aspects of SOFC and PEM technology are covered, including: - materials selection and analysis for fuel cells; - fuel cell stack design and development; - modeling and control of processes and systems; - and reforming technology. The book also signposts the emerging field of microbial fuel cells, the main alternative to SOFCs and PEMs. It is an essential reference for researchers, academics and industrialists interested in up-to-date information on fuel cell development.