Georgia Institute of Technology researchers have developed a paper-based flexible supercapacitor using a simple layer-by-layer coating technique that could be used to help power wearable devices. The device uses metallic nanoparticles to coat cellulose fibers in the paper, creating supercapacitor electrodes with high energy and power densities – and the best performance so far in […]

Rice University scientists have found a touch of asphalt may be the secret to high-capacity lithium batteries that charge up to 20 times faster than commercial lithium-ion batteries. Chemist James Tour’s lab at Rice University developed anodes comprising porous carbon made from asphalt that showed exceptional stability after more than 500 charge-discharge cycles. A high-current […]

Researchers at the University of Maryland and the U.S. Army Research Laboratory have developed a lithium-ion battery that uses a water-salt solution as its electrolyte. The chemistry solution also reaches the 4.0 volt mark desired for household electronics, such as laptop computers, without the fire and explosive risks associated with some commercially available non-aqueous lithium-ion […]

University of Sydney researchers have found a solution for one of the biggest stumbling blocks of zinc-air batteries. Zinc-air batteries could overtake conventional lithium-ion batteries as the power source of choice in electronic devices. Zinc-air batteries operate with zinc metal and oxygen from the air. Due to the global abundance of zinc metal, these batteries […]

Argonne National Laboratory scientists have engineered a new material to be used in redox flow batteries. Redox flow batteries are particularly useful for storing electricity for the grid. The new material consists of carefully structured molecules designed to be particularly electrochemically stable in order to prevent the battery from losing energy to unwanted reactions. The […]

keep looking »