MG will equip its next generation of plug-in hybrid vehicles with semi-solid-state batteries [1].
This transition represents a significant shift in powertrain technology. By moving away from conventional lithium-ion cells, the company aims to reduce the safety risks associated with liquid electrolytes while increasing the energy density of the vehicles.
The new battery technology is designed to improve driving range, increase charging speeds, and enhance performance in low-temperature environments [4]. These upgrades are intended to make hybrid vehicles more viable for long-distance travel, and more reliable in colder climates [3].
Reports on the specific rollout timeline vary. Some data indicates a planned launch in 2026 [1], while other reports suggest the first plug-in hybrids with this technology will arrive in 2027 [2]. The rollout is expected to focus on the European market and China [3].
To support these batteries, MG is introducing a new hybrid powertrain. This system will feature 1.1-liter and 1.5-liter turbo-petrol engines [5]. The integration of these smaller, efficient engines with high-density batteries is part of a broader strategy to compete with both pure electric vehicles and traditional hybrids.
While the focus is now on plug-in hybrids, the company has already tested the technology in other models. In China, an MG4 electric SUV featuring a semi-solid-state battery was priced at 102,800 yuan, which is approximately $14,500 [2]. This suggests that the cost of the technology is becoming more accessible for mass-market production.
The move comes as automotive manufacturers race to bridge the gap between current lithium-ion technology and the eventual goal of full solid-state batteries. Semi-solid batteries serve as a middle ground, offering improved safety and energy capacity without the manufacturing complexities of a fully solid electrolyte.
“MG will equip its next generation of plug-in hybrid vehicles with semi-solid-state batteries”
The adoption of semi-solid-state batteries in plug-in hybrids signals a transition period for the EV industry. Because full solid-state batteries remain difficult to mass-produce, semi-solid cells allow manufacturers to offer higher safety and range benchmarks immediately. By deploying this in hybrids rather than just pure EVs, MG is targeting 'range anxiety' and charging infrastructure gaps in Europe and China.
