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https://www.sae.org/news/2023/....07/nyobolt-fast-char
"EV'S BATTERIES" THAT CAN/COULD CHARGE FULLY, WITHIN 6/SIX MINUTES CERTAINLY WILL HELP WITH MOVING FASTER TOWARDS "ZERO/0" EMISSIONS TRAVEL AND TRANSPORTATION!!! 😎🤩🥰
The Lotus Elise-based demonstration concept car for the Nyobolt/Callum fast-charging lithium-ion battery technology; the companies claim the smaller battery enabled by fast charging means much-reduced weight penalty compared to current EVs. (Nyobolt)
Fully charged in six minutes?
2023-07-18 JOHN KENDALL
Nybolt and Callum demo a battery that can be charged so quickly that it wouldn’t need to be as big.
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Battery technology company Nyobolt and UK-based design and engineering consultancy Callum are collaborating on a demonstration of new lithium-ion battery tech that would permit the full charge of a vehicle in about six minutes.
The project uses a 2-seat sportscar based on the Lotus Elise. The Elise was designed in the early 1990s by Julian Thomson, who also designed the project vehicle. The concept was developed and executed by Callum. Thompson now is the design director at General Motors Advanced Design Europe, based in the U.K.
Nyobolt provided a charging demonstration using a 1 kWh battery in a closed cabinet, using a simple cooling plate to regulate battery temperature. A data logger showed that during the six-minute charge, the battery reached a maximum temp of 42° C (108° F).
“We were charging initially at 12 (Celsius), so that would be a 12-minute charge”, explained Nyobolt Vice President of Operations and Engineering, Steve Hutchins, “We've actually got batteries that charge much faster than that, but for this purpose, that's where we think is a good sweet spot. And in terms of thermal management, one of the advantages of the cells is that they don't get very hot, so we can get away with a lot less heat management than you would think.
“We've tested those cells to over 2,000 cycles and it's still above 80 percent capacity at 12° C charging, a very high-speed charge rate, a very minimum degradation. Depending on your driving style, [longevitiy] could be five years, 10 years, or 20 years.” Hutchins suggested a typical charging-temperature range of around 35° to 40° C (95° to 104° F), in the range seen during the demonstration...CONT...
