620-mile solid-state EV coming in 2026 as Chinese automaker tests battery from –22°F to 266°F
Published on Nov 19, 2025 at 3:38 AM (UTC+4)
by Claire Reid
Last updated on Nov 19, 2025 at 3:38 AM (UTC+4)
Edited by
Claire Reid
Chinese carmaker Dongfeng is set to launch a car powered by solid-state EV batteries that can offer more than 600 miles of range.
Solid-state EV batteries have been dubbed the ‘holy grail’ of battery technology, offering more range, faster charging times, and improved safety.
Currently, there are several carmakers, including Toyota and BMW, working away on bringing the next-generation batteries to market.
However, it seems as though Dongfeng could be set to pip them to the post after announcing it plans to deploy solid-state EV batteries into its cars next year.
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Dongfeng says solid-state EV batteries will be introduced in 2026
For now, semi-solid-state EV batteries are already in use, and could be about to revolutionize electric bikes.
However, as yet, full solid-state EV batteries aren’t on the market.
But that’s all set to change next year, with Dongfeng confirming it will be introducing solid-state batteries to its EVs in September next year, months ahead of the proposed 2027 date Toyota is said to be working towards.
According to a report in Car News China, the new technology has an energy density of 350 Wh/kg and will offer more than 620 miles of range between charges, making range anxiety a thing of the past.
As yet, the Chinese carmaker hasn’t revealed how fast the new battery will be capable of charging, but the company has previously showcased its Mach Super-kV Pure-Electric Platform, which features a 1,200 V architecture that allows 2,000kW charging.
In real terms, this means it could top up a battery at a rate of 1.5 miles per second, or 280 miles in just five minutes.
Impressive stuff, right?
The new technology has been through extreme testing
With plans for the solid-state battery to enter production in less than 12 months, Dongfeng has been busy testing the new technology.
According to the report in Car News China, the carmaker tested the battery in extreme temperatures as low as -22°F and found that it still retained 72 percent of its overall capacity.
It also passed a thermal-chamber safety test, where it was tested on the other end of the scale, at temperatures as high as 266°F.
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Claire Reid is a journalist who hails from the UK but is now living in New Zealand. She began her career after graduating with a degree in Journalism from Liverpool John Moore’s University and has more than a decade of experience, writing for both local newspapers and national news sites. Claire covers a wide variety of topics, with a special focus on cars, technology, planes, cryptocurrency, and luxury.
