* Provides details on the latest trends in design and optimization of electrode and electrolyte materials with key focus on enhancement of energy storage and conversion device performance * Focuses on existing nanostructured electrodes and polymer electrolytes for device fabrication as well as new promising research routes towards the development of new materials for improving device performance * Features a dedicated chapter that explores electricity generation by dissociating water through hydroelectric cells, which are a non-toxic and green source of energy production * Describes challenges and offers a vision for next-generation devices