Siamak Farhad is Associate Professor in the Department of Mechanical Engineering, at The University of Akron,Ohio, USA. His primary and secondary research fields are energy and measurement, with a focus on energy, both energy conversion and storage, with particular emphasis on batteries, fuel cells, and piezoelectrics, from nano/microstructure design to the cell, device and system design. His focus in the field of measurement is on new sensors, is interdisciplinary and linked to nanotechnology, electrochemistry, thermal science, and material science. His research is based on both modeling and experiment; the selected research topics are, recycling and regeneration of lithium-ion battery materials, optimization of electrodes nano/microstructure for lithium battery, ceramic solid-state lithium battery, and piezoelectric materials for sensor and energy harvester.