E-Mobility Engineering | September/October 2023 21 Nyobolt EV | Dossier any noticeable effect on performance or safety, even if each recharging was performed within 6 minutes (indicating a charging rate higher than 10C). However, the company is also well aware that offering and commercialising new batteries is difficult, largely because of the repeated failure of new battery technologies to live up to their touted potential. So, rather than merely talk about its offerings, it has elected to unveil its technology in a demonstrator EV to show it is viable for integration by OEMs and road use by consumers. The Nyobolt EV was unveiled in June this year, and integrated a 35 kWh battery pack capable of being charged in less than 6 minutes and tested to more than 2000 cycles without any significant losses in capacity, stability or other parameters. Nyobolt adds that the EV also has a 250 km range between charges and, while not a critical requirement, its bodywork should be recognisable to enthusiasts of Lotus sportscars. High-rate anode Many readers will be sceptical about any claims of a new ‘miracle’ battery chemistry, something that Nyobolt’s CTO Dr Brian Barnett understands only too well. “I know we’re going to get a lot of people asking how we’re doing it, but the fact that they even ask is symptomatic of how difficult it is to make a success of new battery chemistries,” he says. “Announcements of breakthrough battery technologies have been made many times, with nothing happening each time. The reason so many fail is owners and bad for the Earth,” he adds. “Close to 500 GWh worth of batteries were produced in 2022, and if you believe Tesla, that figure will grow 20 times in the foreseeable future. “If instead though a battery could be made much smaller but capable of using the soon-to-be widespread 400- 600 kW chargers without losing its lifespan to lithium dendrite build-ups or thermal damage, you end up with a much more sustainable model for the global EV battery industry.” Nyobolt’s internal r&d over the past 4 years has therefore focused on creating a new type of fast-charging battery that fits these requirements. It is relatively small, designed to safely accept extremely high fast-charging rates and which could last for thousands of charge-discharge cycles without Nyobolt’s demonstrator EV weighs roughly 1246 kg, outputs 364 kW, and integrates a 35 kWh battery pack that can safely charge in under 6 minutes (Courtesy of Elan PR)
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