Efficient, clean, safe, and reliable, fuel cells qualify as an ideal delivery mechanism of clean energy. Fuel Cells: Principles and Applications provides a snapshot of recent trends and breakthroughs in this rapidly progressing field. The author clarifies the scientific concepts underlying fuel cell applications and examines the proactive efforts of several firms to produce and commercialize fuel cell systems. Offering unique insight on future directions, this comprehensive and interdisciplinary reference is ideal for scientists, engineers, and anyone interested in alternative technologies for meeting energy demands.