Historic breakthrough achieved by MG4 with the introduction of the first semi-solid-state battery in a large-scale Electric Vehicle manufacture

New MG4 EV with Semi-Solid-State Battery to Launch Globally

The British automotive brand MG is set to make a significant leap in electric vehicle (EV) technology with the introduction of the MG4 EV equipped with a semi-solid-state battery. This innovative development marks the first time a mass-produced electric car will feature this type of battery.

The MG4 EV, currently available in New Zealand with CLTC ranges of 437km and 530km for the 51kWh and 77kWh battery packs respectively, will see an upgrade with the semi-solid-state battery. The battery, supplied by Suzhou Qingtao Power Technology, a global leader in solid-state EV battery development, replaces the lithium iron phosphate (LFP) battery found in other MG4s.

The exact range, battery capacity, and charging speeds for the semi-solid-state variant of the MG4 are currently undisclosed. However, the MG4 Anxin Edition, which is available in China, boasts a manganese-based lithium-ion battery of around 70 kWh capacity and an estimated CLTC range of approximately 537 km.

The single front-mounted 120kW motor, similar to other MG4 models, will power the EV. The MG4 EV's dimensions remain the same as the current model: 4395mm long, 1842mm wide, 1551 mm tall, and with a 2755 mm wheelbase.

The cabin of the MG4 EV is expected to be similar to the existing line-up, featuring a 15.6-inch floating infotainment screen and various smart tech options. Optional extras include a 360-degree camera, front and rear radars, tinted roof, privacy glass, and bespoke badging.

SAIC Motor, the manufacturer of the MG4 EV, has confirmed that the pricing, range, and battery capacity of the semi-solid-state variant will be announced in September 2025. Deliveries are expected by the end of 2025. Pre-orders for the updated MG4 opened earlier this month, with an initial price of ¥73,800 (approximately NZ$17,200).

The introduction of the MG4 EV with a semi-solid-state battery could potentially serve as an early representation of mainstream EVs, offering higher energy density, improved safety, and better cold-weather performance. The MG4 EV, approved for sale in China, is expected to launch globally on a large scale by the end of 2025.