Although electric vehicles (“EVs”) are poised to replace internal combustion engine (“ICE”) vehicles over the next few decades, they currently account for a small fraction of global car sales. One issue that has consistently stood in the way of widespread EV adoption is recharging times, with EV batteries taking much longer to recharge compared to refueling ICE vehicles. For most countries to achieve their EV adoption and climate goals, battery companies and EV makers would have to design electric vehicle batteries that can recharge in an incredibly short time without sustaining any damage.
Danish researchers from Aarhus University are working to develop batteries that could achieve such a feat in the coming years. Led by Assistant Professor Corneliu Barbu from the Department of Electrical and Computer Engineering at Aarhus University, the team plans to develop a novel kind of battery for EVs that has a range of 217 miles and could be recharged within just six minutes. Thanks to its modular design, the battery will be virtually maintenance-free with an expected service life of a minimum of 20 years.
For the battery to be usable in buses as well as trucks, they will be modular and scalable, says Barbu. The batteries will be designed in the form of a carpet made up of modular blocks installed under the vehicle’s seats, allowing for much more efficient heat management. Additionally, the distribution of modular blocks will keep the weight down and provide a lower center of gravity, lowering costs of production and making the vehicles safer.
On average, electric car batteries weigh between 660 and 1100 pounds and have a capacity of 30 to 60 kWh. The Aarhus University researchers are looking to develop a next-gen prototype battery that weighs 30% less and has 20% less volume but with a capacity of 350 kWh and can fully recharge in only a few minutes. They also want to “digitize heat control,” Barbu explains. Since super-fast charging generates a lot of heat, the batteries will need efficient heat management to ensure a high level of safety and keep them from degrading.
According to Barbu, this project could impact the full switch to green energy in Europe, with Denmark playing a pivotal role within the EV industry with other European partners. There may be a fierce battle to take the lead in battery technology in the nascent EV industry, but he believes pooling knowledge from different disciplines and working with various European universities is the best and fastest way to develop next-gen EV batteries.
Back in the United States, Boston-based ev Transportation Services Inc. is quietly claiming a significant portion of the market for EVs in the urban mobility sector with its light-duty, fully electric commercial vehicle called the Firefly ESV.
NOTE TO INVESTORS: The latest news and updates relating to ev Transportation Services Inc. are available in the company’s newsroom at https://ibn.fm/EVTS
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