Just 12 months after revealing the concept, a driveable Nyobolt EV prototype, engineered together with CALLUM, has left the lab to prove its ultra fast charging capabilities on the test track.
Initial in-vehicle testing this month using powerful 350kW (800V) DC fast chargers has already confirmed that the Nyobolt EV’s 50Ah 35kWh battery can be charged from 10 to 80% in four minutes 37 seconds – with a full 100% charge enabling the prototype to achieve a range of 155 WLTP miles. That is twice the speed of most of the fastest charging vehicles today.
Independent testing of Nyobolt’s technology by a leading global OEM confirms that Nyobolt’s longer lasting and more sustainable batteries can achieve over 4,000 fast charge cycles, or 600,000 miles, maintaining over 80% battery capacity retention.
The 35kWh battery pack in the Nyobolt EV prototype not only adds miles faster but the compact battery pack size benefits car makers and motorists, enabling energy efficient electric vehicles that are cheaper to buy and run, and crucially use fewer resources to manufacture.
Nyobolt is in talks with eight OEMs about using its technology in high performance EVs.
“Despite some OEMs showing fast charge times in the region of 15 minutes, a closer inspection reveals the charge is usually across a limited SOC region specifically chosen to limit the amount of life taken out of the cell; for instance, between 20-80 per cent,” says Nyobolt’s co-founder and CEO, Dr Sai Shivareddy.
“Typically, the charge profile will only hold these peak charge levels for a short amount of the charge time. 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.”
Whilst the priority use for this Nyobolt EV is showcasing and testing the battery technology, CALLUM’s team has engineered it so that low volume production – for road or track use – is possible. Nyobolt’s battery assembly plans are more advanced and could be in production at low volume within a year, ramping to 1,000 packs in 2025.
Nyobolt’s co-founder and CEO, Dr Sai Shivareddy
The Nyobolt EV’s architecture also highlights how it could be retrofitted to existing EV platforms, bringing a step change in charge time and battery cycling life.
“Our extensive research here in the UK and US has unlocked a novel battery technology that is ready and scalable right now. We are enabling the electrification of new products and services currently considered inviable or impossible. Creating real-world demonstrators, such as the Nyobolt EV, underlines both our readiness and commitment to making the industries see change is possible.”
