Power/Performance Bits: Feb. 6

Recycling cathodes Nanoengineers at the University of California San Diego developed an energy-efficient recycling process that restores used cathodes from spent lithium ion batteries. The process involves harvesting the degraded cathode particles from a used battery and then boiling and heat treating them. In new batteries built with the cathodes, charge storage capacity, charging time and ba... » read more

Power/Performance Bits: Sept. 5

Energy-harvesting yarn Researchers at the University of Texas at Dallas and Hanyang University in South Korea developed a carbon nanotube yarn that generates electricity when stretched or twisted. Possible applications for the so-called "twistron" yarns include harvesting energy from the motion of ocean waves or from temperature fluctuations. When sewn into a shirt, these yarns served as a sel... » read more

Power/Performance Bits: Aug. 1

Concentrating photovoltaics Engineers at Penn State University and the University of Illinois at Urbana-Champaign tested a new concentrating photovoltaic solar system, which they say can produce over 50% more energy per day than standard silicon solar cells. In contrast to silicon solar panels, which currently dominate the market at 15 to 20 percent efficiency, concentrating photovoltaics (... » read more

System Bits: Sept. 24

Printing nanostructures with self-assembling material A multi-institutional team of engineers from the University of Illinois at Urbana-Champaign, the University of Chicago and Hanyang University in Korea has developed a new approach to the fabrication of nanostructures for the semiconductor and magnetic storage industries. The approach combines top-down advanced ink-jet printing technology... » read more