Semi-solid battery to power budget Chinese EVs promising 334-mile range

Chinese state-owned MG Motor is set to launch the MG4 electric hatchback on August 5, marking the first budget EV to feature semi-solid-state battery technology previously limited to premium models. The battery, supplied by QingTao Energy, contains only 5% liquid electrolyte, enhancing safety, stability, and durability. It has passed rigorous safety tests, including a 360-degree puncture test, and retains 13.8% more range than traditional lithium-iron-phosphate (LFP) batteries in cold temperatures (19.4°F). The MG4’s 70 kWh battery pack powers a 120 kW rear-mounted motor, providing rear-wheel drive and an estimated range of 334 miles with an energy density of 180 Wh/kg, offering improved driving dynamics and performance compared to competitors like the BYD Dolphin. The MG4 is larger than many rivals, measuring about 14.4 feet long with a 9-foot wheelbase, and is expected to compete aggressively on price