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Interdisciplinary Research Centre

Nyobolt, a University of Cambridge spin-out company, has demonstrated its ultra-fast charging batteries in an electric sportscar prototype, going from 10% to 80% charge in under five minutes, twice the speed of the fastest-charging vehicles currently on the road.


In addition to ultra-fast charging times, the batteries developed by Nyobolt – which was spun out of Professor Dame Clare Grey’s lab in the Yusuf Hamied Department of Chemistry in 2019 – do not suffer from the degradation issues associated with lithium-ion batteries.

Tests of the first running Nyobolt EV prototype will be used to validate the company’s battery performance in a high-performance environment. Cambridge-based Nyobolt has used its patented carbon and metal oxide anode materials, low-impedance cell design, integrated power electronics and software controls to create power-dense battery and charging systems. These support the electrification of applications such as heavy-duty off-highway trucks, EVs, robotics and consumer devices that demand high power and quick recharge cycles.

Initial in-vehicle testing using 350kW (800V) DC fast chargers confirmed that the Nyobolt EV’s battery can be charged from 10 per cent to 80 per cent in four minutes 37 seconds – with a full charge enabling the prototype to achieve a range of 155 miles. That is twice the speed of most of the fastest-charging vehicles today.

Independent testing of the technology confirmed that Nyobolt’s longer-lasting and more sustainable batteries can achieve over 4,000 fast charge cycles, or 600,000 miles, maintaining over 80 per cent battery capacity retention. This is many multiples higher than the warranties of much larger EV batteries on the road today.

“Nyobolt’s low impedance cells ensure we can offer sustainability, stretching out the battery’s usable life for up to 600,000 miles in the case of our technology demonstrator,”Dr Sai Shivareddy, Nyobolt co-founder and CEO


The battery pack in the Nyobolt EV prototype not only adds miles faster but the compact battery pack size enables energy-efficient electric vehicles that are cheaper to buy and run, and crucially use fewer resources to manufacture.


Read the full University of Cambridge article.

Image credit: Nyobolt