Some of the 300 million tires discarded each year in the US could be recycled and used in electrodes for supercapacitors, using a new technology developed at Oak Ridge National Laboratory and Drexel University. The process is described in a paper published in ChemSusChem, titled “Waste Tire Derived Carbon-Polymer Composite Paper as Pseudocapacitive Electrode with… Read more »
Search Results Found For: "graphite"
Tesla tweaks its battery chemistry: a closer look at silicon anode development
In mid-July, Tesla Motors made a trio of Model S update announcements. The new options included a 70 kWh rear-wheel-drive base model, an upgrade for the high-end battery pack from 85 to 90 kWh (providing about a 6% increase in range), and Ludicrous mode, which offers a 10% improvement in the car’s 0 to 60… Read more »
New hollow-structured nanomaterial greatly reduces volumetric expansion in anodes
Battery tech startup Lionano has announced an agreement with Cornell University’s Center for Technology Licensing (CTL) to develop and produce a “drop-in” anode material for Li-ion batteries. The new material is a hollow-structured metal oxide that can substantially reduce the volumetric expansion of a conventional anode. According to Lionano, it can deliver a capacity of… Read more »
Chinese battery-maker orders Separion ceramic composite separators from Electrovaya
Canadian manufacturer Electrovaya has announced a major order for its Separion ceramic composite separators from an unnamed Chinese battery company. Electrovaya acquired the Separion intellectual property from a company called Evonik in April. According to Electrovaya, most cells made with a graphite anode and a Nickel Manganese Cobalt (NMC) cathode have cycle life between 3,000… Read more »
2015 Kia Soul EV: A strong contender in the growing EV market
Charged faithfully reports on every new plug-in vehicle that comes out, and while there are reasons to be excited about pretty much all of them, there’s always a question lingering in the background: Does this manufacturer plan to actively market its new EV, or is this just another compliance car, to be produced in limited… Read more »
SolidEnergy hopes to double EV battery range by 2017
SolidEnergy, an MIT spin-out company commercializing solid electrolyte technology, plans to release a 20 Ah EV battery in 2017, which it says will offer more than two times the range of current Li-ion batteries. The core of SolidEnergy’s technology is a Solid Polymer Ionic Liquid (SPIL) electrolyte, which enables the use of an ultra-thin lithium… Read more »
Researchers develop dendrite-free lithium films, an important step toward lithium metal anodes
There’s a lot of interest in using lithium metal as an anode material, because of its theoretical high capacity of 3,860 mAh g−1 (around ten times that of the graphite anodes used in typical Li-ion batteries). However, it doesn’t measure up in terms of cycle life and safety requirements, and one reason is the formation of… Read more »
New battery, using titanium dioxide anode, can be recharged in two minutes
The latest battery breakthrough comes from Nanyang Technological University (NTU Singapore), where researchers have developed a lithium-ion battery that they say can be recharged up to 70 per cent in only two minutes, and can endure more than 10,000 charging cycles. NTU Singapore’s scientists replaced the traditional graphite anode with a new gel material made… Read more »
Fraunhofer Institute presents November workshop on lithium-sulfur batteries
The Fraunhofer Institute will hold its third annual workshop on lithium-sulfur batteries in Dresden, Germany, on November 12 and 13. Lithium-sulfur is a leading contender for the battery chemistry of the future, and Fraunhofer believes that novel materials such as nanostructured carbon/sulfur composite cathodes, solid electrolytes and alloy-based anodes will significantly enhance performance. Dr Oliver… Read more »
New imaging technique gives researchers an unprecedented look at the inner workings of batteries
Scientists around the world are testing new ways to look inside lithium-ion batteries to gain a better understanding of what happens during charging and discharging. A team of chemists and engineers at Ohio State University claims to be the first to use Neutron Depth Profiling (NDP) to track the flow of lithium ions into and… Read more »