MG's New Battery Technology: A Practical Analysis

Daily Car

25/03/2026

What is MG's new SolidCore battery?

MG has introduced a semi-solid-state battery, a new type of power source for electric vehicles (EVs). This technology, named 'SolidCore,' will first appear in the MG4 EV Urban model. Unlike traditional lithium-ion batteries that use a significant amount of liquid electrolyte, this new battery reduces the liquid component from about 20% to just 5%. The electrolyte is the medium that allows electric charge to flow between the positive and negative terminals. By replacing most of this liquid with solid material, the battery's internal structure is fundamentally changed.

How does it improve vehicle performance?

The primary advantages of the SolidCore battery are enhanced safety and better performance in cold climates. The reduced liquid content makes the battery less volatile and more stable. MG has demonstrated that the pack resists catching fire even when punctured. Furthermore, it uses a Lithium-Manganese-Oxide (LMO) chemistry that allows for up to 15% faster charging speeds in very low temperatures, down to minus 30 degrees Celsius, compared to common Lithium-Iron-Phosphate (LFP) batteries.

Will this new battery increase driving range?

For the initial version, the energy density—the amount of energy stored in a given size—is very similar to existing LFP batteries. This means drivers should not expect a significant increase in maximum driving range from this first-generation SolidCore battery. However, MG has stated that future evolutions of this technology are planned, with the potential to deliver ranges of up to 621 miles (1000km) in second and third-generation versions.

Is this technology more expensive?

According to MG, the production cost for the SolidCore battery is comparable to that of its current LFP batteries. LFP batteries are already known for being a cost-effective solution for EVs. By introducing this new technology in the budget-oriented MG4 model, it is expected that the final cost to the consumer will remain competitive and not create a significant price increase.

What is the main benefit for the average driver?

The immediate, practical benefits for a customer are improved safety and more reliable charging during cold weather. While the initial performance gains in range are not substantial, the technology represents an important step forward. It lays the groundwork for future batteries that promise major improvements in EV range and performance. The key takeaway is that this is a foundational technology with marginal immediate benefits but significant long-term potential.

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