Motorola Solutions has invested an unspecified amount in Pellion Technologies, a startup that was founded by a team of MIT researchers. Pellion is focused on commercializing magnesium-ion battery technology. Because magnesium is divalent, it can displace double the charge per ion that lithium can, and the element is more abundant and more stable. Magnesium-ion batteries… Read more »
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A possible key to Li-sulfur batteries: highly crumpled nitrogen-doped graphene sheets
Researchers at Pennsylvania State University have developed a promising new technique that may be able to overcome some of the challenges inherent to lithium-sulfur batteries. In “Advanced Sulfur Cathode Enabled by Highly Crumpled Nitrogen-Doped Graphene Sheets for High-Energy-Density Lithium-Sulfur Batteries,” published in Nano Letters, Jiangxuan Song and colleagues explain how they synthesized highly crumpled nitrogen-doped… Read more »
Q&A with Tesla’s lead motor engineer (Full Interview)
The principal motor engineer at Tesla describes why modeling and optimization is so vital to its design process. Creating a start-of-the-art electric vehicle requires a deep understanding of all the components. More importantly, it requires a continual process of analysis and optimization of the components to push the limits of driving range, efficiency, performance and… Read more »
James Bond’s Jag may become production EV
No one expects Jaguar’s first EV to be a practical hatchback – on the contrary, it may be a futuristic super-sportscar to rival the likes of the Tesla Model S and BMW i8. The South Africa news outlet Independent Online reports that unnamed insiders are talking about putting the Jaguar C-X75 prototype featured in the… Read more »
Hitachi researchers demonstrate thermally durable solid-state Li-ion battery
A research team sponsored by Hitachi and Tohoku University’s Advanced Institute for Material Research (AIMR) has demonstrated technology that reduces the internal resistance of all-solid-state Li-ion batteries through the use of LiBH4-based complex hydrides as solid electrolytes. A conventional Li-ion battery uses a volatile organic electrolyte solution with a maximum operating temperature around 60˚ C…. Read more »
Researchers develop new silicon-sulfur-graphene electrode material
Researchers from the University of Waterloo and GM’s Global Research and Development Center have developed a new silicon-based anode material that they say could enable batteries with almost 10 times more energy density than today’s state of the art. In “Evidence of covalent synergy in silicon–sulfur–graphene yielding highly efficient and long-life lithium-ion batteries,” published in… Read more »
European researchers: Our new Li-sulfur battery is more energy-dense, cheaper and safer
EU-funded researchers in the LISSEN (Lithium Sulfur Superbattery Exploiting Nanotechnology) project have developed a new lithium-sulfur battery that uses lithiated silicon as the anode and a nanostructured sulfur-carbon composite as the cathode. The team says its battery offers an energy density at least three times higher than that of current lithium battery technology, as well… Read more »
Scrap tires transformed into supercapacitor electrodes
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 »
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 »
2016 Chevy Volt: GM’s top electrification engineers on designing the all-new EREV
When the Chevrolet Volt was launched at the end of 2010, I must confess that I gave it little chance of success. It seemed like an awkward compromise – buyers who wanted to go electric would surely prefer a pure EV, and buyers who weren’t ready to take that plunge had every reason to stick… Read more »