Current electrode materials such as graphite are able to stably adsorb only a limited number of lithium ions, an inconvenient truth that restricts capacity. That’s why researchers around the world are investigating semiconductor materials such as silicon as alternative electrodes. Bulk silicon is able to accommodate enormous quantities of lithium, but the migration of the… Read more »
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XG Sciences receives DOE grant for silicon-graphene anode technology
Michigan-based XG Sciences has received a DOE Round 2 small business award for $150,000, which it will use to support its efforts to develop low-cost manufacturing of a silicon-graphene composite anode. One goal for the new anode type is to reduce the formation of the solid electrolyte interface (SEI). The SEI layer is both a… Read more »
Chinese researchers develop aluminum-graphite dual-ion battery
A team from the Shenzhen Institutes of Advanced Technology of the Chinese Academy of Sciences has developed a novel, environmentally friendly low-cost battery. In “A Novel Aluminum-Graphite Dual-Ion Battery,” published in Advanced Energy Materials, Yongbing Tang and colleagues present a new aluminum-graphite dual-ion battery (AGDIB) that they say offers higher energy density than conventional LIBs, as… Read more »
Electrified supercars in Geneva
At the recent Geneva Auto Salon, a number of smaller automakers had electrified supercars on display. Few of these are likely to be seen on the world’s roads any time soon, but it’s interesting to see how designers are combining electric and legacy drives for maximum performance. The British firm Arash (via Green Car Reports) unveiled a… Read more »
Hyundai joins the plug-in club with the 2016 Sonata PHEV
Around the world, automakers are facing ever-tightening emissions regulations, and they understand very well that improving the efficiency of their internal-combustion engines isn’t going to be enough to bring them into compliance. Each OEM has crafted its own strategy to reduce the average emissions of its fleet. Hyundai has opted for an “all-in strategy,” developing… Read more »
Can Tanktwo redefine the battery pack with big data?
A Finnish-American start-up with ambitious goals wants to change how we think about batteries. The concept of an EV that supports the quick removal and replacement of a discharged battery pack was all the rage about 5 years ago. Since then, however, various systems have been attempted and subsequently abandoned by companies like BetterPlace, Renault,… Read more »
Paraclete Energy says its low-cost silicon nanoparticles can at least double your current anode capacity
Silicon has a theoretical charge capacity ten times higher than typical graphite. That is why a mind-blowing number of researchers are working towards replacing more and more of the graphite used in today’s lithium-ion battery anodes with silicon. In the last issue of Charged, we discussed Tesla’s announcement that it had begun to use small… Read more »
EV marketing efforts continue to miss the mark, determining the reasons why is complicated
Most of us in the EV industry are probably tired of the mainstream media’s constant stream of “EVs aren’t selling” articles, which began around the time the Volt made its debut, and will probably continue until the day the last ICE vehicle rolls off the line. Well, for the near future, it’s only going to… Read more »
The Electric Car Guide: Nissan LEAF (book review)
This new book (written in March 2015) offers an overview of the world’s best-selling EV. It’s a slim volume (90 pages) that’s aimed at prospective purchasers, not at engineering types. There’s little in the way of technical detail, but if you’re considering buying a LEAF, you’ll find the answers to most of your questions here…. Read more »
Researchers develop sodium-ion battery in 18650 format
Jules Verne recognized the potential of sodium batteries in 1869 – they powered the futuristic submarine of Captain Nemo, who found their “electro-motor strength” to be twice that of zinc batteries. Now scientists at the French research network RS2E have brought sodium batteries into the 21st century, producing the first sodium-ion battery in the industry-standard… Read more »