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An electric vehicle powered by semi-solid state batteries for around $11,000? Sounds like a game changer. This Chinese automaker claims to be launching the first mass-market EV sold globally with new semi-solid state batteries.
An affordable Chinese EV with solid-state batteries
The new MG4 is set to debut next month, featuring advanced new battery tech. MG’s brand manager, Chen Cui, confirmed “the new battery, supplied by QinTao Energy, contains only 5% electrolyte.”
According to MG, the semi-solid-state EV battery delivers a CLTC driving range of up to 537 km (334 miles) with an energy density rating of 180 Wh/kg. It also outperforms LFP batteries in cold weather (–7°C) by 13.8%.
Chen explained that the new MG4 will launch at a competitive price. Although he didn’t offer specifics, Chen hinted that it will be on par with the BYD Dolphin, at around 80,000 yuan ($11,000) to 120,000 yuan ($16,500), adding, “there is no reason customers wouldn’t choose the MG4.”
MG says the new MG4 will draw power from a 70 kWh battery pack. A rear-wheel-drive (RWD) powertrain option will be available with 161 horsepower (120 kW).
BYD’s popular Dolphin electric hatch is offered with two LFP Blade Battery options: 44.9 kWh and 60.48 kWh, good for 420 km (261 mi) and 520 km (323 mi) of CLTC driving range.
The new MG4 is slightly bigger than the Dolphin, measuring 4,395 mm in length, 1,842 mm in width, with a wheelbase of 2,750 mm. In comparison, BYD’s electric hatch is 4,280 mm in length, 1,770 mm in width, with a wheelbase of 2,700 mm.
MG’s new EV will also feature its new smart cockpit system (MG x Oppo), co-developed with Chinese electronics company Oppo.
On July 14, the first new MG4 model rolled off the production line at SAIC’s Nanjing plant, with its official debut coming up on August 5.
Electrek’s Take
The new MG4 could shake things up in China and in overseas markets, offering long-range capabilities and advanced new tech at an affordable price.
As China’s EV price war intensifies, largely driven by BYD, automakers are looking to overseas markets to drive growth this year.
MG is already one of the top-selling Chinese auto brands globally. It also ranked first in retail sales in China, delivering over 2 million vehicles in the first six months of 2025.
The new MG4, powered by semi-solid-state batteries, marks the first step in MG’s new energy strategy. It arrives as many automakers and other companies are advancing new battery technology, promising significantly higher energy density, longer driving ranges, and more.
BYD, CATL, Mercedes-Benz, BMW, Stellantis, Toyota, Nissan, Honda, and many others are all chasing the “holy grail” of EV batteries.
Source: CarNewsChina, SAIC MG
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