Desten Teases 5 Minute, 900 kW Ultra-Fast Charging Battery Tech
Its batteries are expected to be used in the upcoming Piech GT Electric Grand Tourer.
By: Mark Kane
Desten, a Hong Kong, China-based battery company founded in 2015, teases its battery cell technology, which is promised to offer ultra-fast charging at some 10C, in less than 5 minutes.
The company says that its batteries can be recharged from 0% to 80% state of charge in 4 minutes and 40 seconds.
The prototype battery pack and electric vehicle iss ready to charge at up to 900 kW, which is some three times higher than the peak value for currently available cars (270 kW – Porsche Taycan).
Desten does not explain the details (chemistry), but the batteries are expected to be used in the upcoming Piëch GT, which is supposed to have a 75 kWh battery and capability to recharge in 5 minutes. The range of this car will be 500 km (311 miles) of WLTP, which would be 150 Wh/km (241 Wh/mile).
Desten notes that an increase in battery charging power would reduce the charging time and the number of charging stalls required, as well as improve the regenerative braking capabilities.
According to the company, the new battery cells are also long-lasting with 3,000 charging cycles (100% DoD), maintaining 80% of nitial capacity, which is equivalent to 1.5 million km (932,000 miles).
If all of above already does not sound too good to be true for you, here is one more thing – no need for cooling, as the cells barely warm up during ultra-fast charging, increasing temperature by only 15°C.
Desten’s website shows a 19 Ah cell spec with energy density above 160 Wh/kg and 350 Wh/l, which indicates that those are high-power cells, but not really high-energy dense cells. They are actually below LFP.
Maybe there will be some gains from a simple battery pack/lack of cooling, but overall, it might be heavy – a 75 kWh battery would require some 468 kg of battery cells (plus everything else in the battery pack, like cables, electronics, modules, enclosure).
The second question is the cost, as the fast charging LTP batteries, often used in electric buses – as far as we know – have usually been costly (per kWh unit).
The only person who got all his work done by Friday was Robinson Crusoe.
Anything i post over three lines long please assume it is an article lol.