In a significant advancement for EV technology, researchers at Chung-Ang University in South Korea have made a breakthrough in lithium-ion (Li-ion) battery charging times and safety.
Published in the journal Energy Storage Materials, their study focuses on improving Li-ion batteries for EVs.
The challenge with current Li-ion batteries lies in achieving rapid charging without compromising the battery’s energy density, which affects the vehicle’s range and charging times. Additionally, fast charging has raised safety concerns due to lithium plating, which can lead to high cell polarization.
The research team has developed a strategy to mitigate these issues by enhancing the electrolyte composition within the battery. By using concentrated LiPF6 (a Li-ion battery electrolyte) in combination with linear carbonates, the team aimed to improve the desolvation process, which is critical for rapid ion movement into the graphite anode. They specifically focused on electrolytes with low activation energy, such as dimethyl carbonate, to facilitate faster charging.
Their findings indicate that these electrolyte modifications can significantly enhance fast-charging capabilities while maintaining battery stability. Laboratory tests on a 1.2-Ah pouch cell demonstrated that the battery could retain three times more capacity over 200 cycles, and importantly, it prevented the cell swelling commonly associated with lithium plating.
Moreover, the study employed molecular dynamics simulations to understand the effects of different electrolyte concentrations on battery performance. This dual approach of practical experimentation and computational analysis provides valuable insights into how future batteries can be engineered for ultra-fast charging capabilities.
Lead researcher and associate professor Janghyuk Moon believes that these advancements could make EVs more practical by reducing charging times and extending vehicle range, thus encouraging broader adoption.
Moon said, “By improving the kinetics and stability of batteries under fast charging conditions, we hope to make a meaningful impact on the EV industry and ultimately on people’s daily lives.”
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The Top Gear TV show might be over, but its tamed racing driver – a masked, anonymous hot shoe known only as “the Stig” – lives on … and his latest adventure involves pitching the 1,400 hp electric Ford SuperVan demonstration vehicle around the famed Top Gear test track. Sideways.
In this video from the official Top Gear YouTube channel (is Top Gear just a YouTube show, now?), the boxy Ford racer seems to have sprouted an additional 600 peak horsepower in its latest “4.2” iteration, for a stout 2,000 hp total. For his (?) part, the Stig puts all of those horses to work in what appears to be a serious attempt to take the overall track record.
I won’t spoil the outcome for you, but suffice it to say that even the most die-hard anti-EV hysterics will have to admit that SuperVan is a seriously quick machine.
SuperVan 4.2: How fast can a 2000 hp transit go?
[SPOILERS AHEAD] Even with 2,000 hp, instant torque, and over 4,000 lbs. of aerodynamic downforce, the SuperVan wasn’t able to beat the long-standing 1st and 2nd place spots held by the Renault R24 (a legit Formula 1 race car) and the Lotus T125 Exos (a track-only special that sure looks like a legit Formula 1 race car), but after crossing the line with a time of 1:05.3, the Ford claims third place on the overall leaderboard.
You can check out the video (above) and watch the whole segment for yourself, or just skip ahead to the eight-minute mark to watch the tire-shredding sideways action promised in the headline. If you do, let us know what you think of Ford’s fast “van” in the comments.
Swedish multinational Sandvik says it’s successfully deployed a pair of fully autonomous Toro LH518iB battery-electric underground loaders at the New Gold Inc. ($NGD) New Afton mine in British Columbia, Canada.
The heavy mining equipment experts at Sandvik say that the revolutionary new 18 ton loaders have been in service since mid-November, working in a designated test area of the mine’s “Lift 1” footwall. The mine’s operators are preparing to move the automated machines to the mine’s “C-Zone” any time now, putting them into regular service by the first of the new year.
“This is a significant milestone for Canadian mining, as these are North America’s first fully automated battery-electric loaders,” Sandvik said in a LinkedIn post. “(The Toro LH518iB’s) introduction highlights the potential of automation and electrification in mining.”
The company says the addition of the new heavy loaders will enable New Afton’s operations to “enhance cycle times and reduce heat, noise and greenhouse gas emissions” at the block cave mine – the only such operation (currently) in Canada.
Electrek’s Take
From drilling and rigging to heavy haul solutions, companies like Sandvik are proving that electric equipment is more than up to the task of moving dirt and pulling stuff out of the ground. At the same time, rising demand for nickel, lithium, and phosphates combined with the natural benefits of electrification are driving the adoption of electric mining machines while a persistent operator shortage is boosting demand for autonomous tech in those machines.
European logistics firm Contargo is adding twenty of Mercedes’ new, 600 km-capable eActros battery electric semi trucks to its trimodal delivery fleet, bringing zero-emission shipping to Germany’s hinterland.
With the addition of the twenty new Mercedes, Contargo’s electric truck fleet has grown to 60 BEVs, with plans to increase that total to 90. And, according to Mercedes, Contargo is just the first.
Contargo’s 20 eActros 600 trucks were funded in part by the Federal Ministry for Digital Affairs and Transport as part of a broader plan to replace a total of 86 diesel-engined commercial vehicles with more climate-friendly alternatives. The funding directive is coordinated by NOW GmbH, and the applications were approved by the Federal Office for Logistics and Mobility.