This work presents fundamental and other relevant properties of nanostructured materials that can be the basis of improved performance in a wide range of alternative energy devices. The book explores the intersection of two major research fields, nanostructured materials and alternative energy devices. There is integrated coverage from batteries and fuel cells to hydrogen generation and storage. The book contains chapters by world leaders in inorganic electrochemical materials. The materials and devices covered by this book promise not only the development of a wide range of new technologies, but also the potential for a more sustainable energy future.