MG has unveiled its SolidCore Battery, which it says is the first mass-produced semi-solid-state battery for electric vehicles. Due in European MG models from late 2026, the technology promises improved range, faster charging, and better cold-weather performance. MG also announced its Hybrid+ powertrain system.
MG has announced what it says is the first mass-produced semi-solid-state battery for electric vehicles, with the technology due to appear in its European models from the end of 2026.
Branded the SolidCore Battery, the system was unveiled on March 23 at the opening of MG’s new European Engineering Centre in Frankfurt, Germany. The company says the semi-solid-state cells deliver improved range, faster charging, better low-temperature performance, and enhanced safety compared with conventional lithium-ion batteries.
According to MG, solid-state electrolytes within each cell form a protective barrier that extends battery lifespan. The architecture is said to perform well in cold conditions, enabling immediate vehicle start-up without preheating and providing improved acceleration versus conventional EVs in low temperatures. MG says the battery has been engineered for European road conditions, climate variations, and regulatory requirements, though the company has not yet disclosed specific energy density figures, cell chemistry partners, or which models will receive the technology first.
Alongside the battery announcement, MG detailed its Hybrid+ powertrain technology, which builds on the brand’s existing hybrid lineup. MG sold 137,000 hybrid vehicles in Europe in 2025, a 300% increase over 2024, with its MG HS model ranking in the top ten best-selling hybrids in most European markets.
The Hybrid+ system incorporates a larger 1.83 kWh high-capacity battery to extend electric-only range and uses what MG describes as a 3-speed hybrid transmission — which it claims is a world first in its segment — to optimize torque delivery. An 8-mode Logic Engine manages propulsion strategy across different driving scenarios, while a fully integrated hybrid control unit (HCU) features real-time terrain detection to adapt power delivery on slopes and changing road conditions.
“MG’s new SolidCore Battery and Hybrid+ technology provide tangible benefits for our customers and position our vehicles at the forefront of their class,” said Kimi Li, vice president of MG Europe and the UK. “These advancements reinforce MG’s commitment to making cutting-edge technology and electric mobility more intuitive, accessible, and widely available.”
The Frankfurt engineering center will focus on developing vehicles tailored to European customers. MG’s European engineering operations are also supported by teams at Longbridge in the UK and a design hub in London. The company says cumulative European sales have now exceeded one million vehicles, supported by around 1,300 dealer partners across 34 countries.
