The solid-state battery is often presented as the future of the electric vehicle. At MG, we are evolving this promise with the SolidCore battery, our semi-solid technology designed to bring the benefits of solid-state batteries closer to the daily lives of drivers. Range, fast charging, safety, and cold-weather performance: our solution meets the expectations of those looking for information on solid-state batteries, while offering a tangible step forward today.
Solid-state batteries are attracting a lot of attention because they embody a new generation of electric batteries that are more powerful, safer, and more efficient. MG SolidCore is part of this evolution, utilizing a semi-solid approach that delivers some of the benefits of a solid-state battery while offering technology that is already scalable for manufacturing. A conventional lithium-ion battery contains about 20% liquid electrolyte. The SolidCore contains only 5%, with the remaining 95% being solid.
At MG, we see the SolidCore battery as an important milestone: a solution that prepares for the future without waiting for solid-state batteries to become a mass-market reality.
The semi-solid battery occupies a strategic position between current lithium-ion batteries and the solid-state battery of tomorrow. It allows for progress across several essential criteria:
For us, this technology represents a genuine driver of innovation at the service of motorists.
LFP (Lithium Iron Phosphate) batteries are known for their robustness, cost-efficiency, and stability. Their structure relies on a primarily one-dimensional ion movement. They offer a reliable solution, but with a more limited energy density.
NMC (Nickel Manganese Cobalt) batteries generally offer a higher energy density than LFP. Their ionic circulation operates in a two-dimensional mode, which improves certain performance aspects. However, they still fall short of the ambitions displayed by SolidCore regarding energy density.
With the SolidCore battery, we are scaling up. Our spinel cathode architecture promotes three-dimensional ionic transport, creating faster and more efficient circulation channels. This design significantly improves energy exchange within the battery.
Energy density is a vital metric for understanding a battery's performance. The higher it is, the more energy the battery can store for the same weight.
With an announced energy density of 400 Wh/kg, our SolidCore battery stands at a significantly higher level than LFP batteries (which post around 140 Wh/kg on certain versions of the MG4 EV) and NMC batteries (generally ranging between 180 and 250 Wh/kg). This difference reflects our ambition: to offer more potential range in a more efficient, advanced format.
In practice, higher energy density can contribute to:
We aren't just trying to showcase better technical data; we want to improve real-world usage.
While LFP batteries rely on a primarily one-dimensional ion flow and NMC cells rely on two-dimensional movement, SolidCore introduces a spinel cathode architecture. This promotes three-dimensional ionic transport, creating faster and more efficient circulation channels.
Why the Semi-Solid Battery's 3D Structure Matters
This design facilitates the movement of ions inside the cell. As a result, energy exchanges can happen much faster, contributing to more dynamic charging and better vehicle responsiveness when power is required.
Concretely, this can translate to:
At MG, we believe that a higher-performing battery should also make the car more enjoyable to use.
We designed the MG SolidCore Battery with a clear goal: to meet the specific needs of European users. The climate, driving distances, mobility habits, and reliability expectations demand high standards.
That is why we are working to offer a battery capable of delivering a more consistent experience, regardless of the season. In winter as in summer, the promise remains the same: more peace of mind, more efficiency, and more driving pleasure.
Winter conditions remain a point of concern for many electric vehicle drivers. This is one of the areas where MG SolidCore brings a compelling answer.
Thanks to its design, the battery maintains better performance at low temperatures. This improves consistency of use and reinforces driver confidence, even when outdoor conditions become more demanding.
One of the major challenges for electric cars remains driving range. With MG SolidCore, we want to boost driver confidence by offering them a technology capable of making better use of onboard energy.
This evolution helps broaden the scope of what is possible, whether for daily commutes, long distances, or unplanned trips. Our ambition is simple: to allow everyone to drive electric without unnecessary compromise.
Charging time is a deciding factor when choosing an electric vehicle. With our semi-solid battery, we are making strides toward faster and more convenient charging.
For drivers, this means less waiting time and a better integration of electric mobility into daily life. For MG, this fits into a broader vision: making electric mobility feel as natural as possible.
Thanks to the battery's internal architecture and faster ion circulation, energy can be mobilized more efficiently. This not only helps improve charging speeds but also supports the electric motor's energy demands during acceleration phases.
In other words, our technology doesn't just target charging—it also contributes to a livelier response from the vehicle on the road.
At MG, we believe that technology must always serve the driver. MG SolidCore reflects this philosophy: a useful, tangible innovation focused on the customer experience.
We want to advance electric mobility with solutions that have a real impact on daily life. This semi-solid battery illustrates our ambition to offer smarter, higher-performing vehicles that are better tailored to today’s needs.
MG SolidCore is destined to be integrated into our most strategic electric models, starting with the MG4 EV Urban. This step marks a major milestone in the deployment of semi-solid technology in Europe.
We see this introduction as proof of our desire to innovate quickly and pragmatically, putting the most promising advancements at the service of a greater number of drivers.
MG SolidCore embodies our vision of a more advanced, reassuring electric mobility tailored to everyday use. By combining enhanced range, faster charging, better winter performance, and increased safety, this semi-solid battery opens up a new path for European drivers.
At MG, we continue to evolve our technologies with the same ambition: to make electric driving more obvious, more enjoyable, and more efficient.
