MG announces new semi-solid state battery
Today in Frankfurt, MG announced its new semi-solid-state battery technology, called the ‘SolidCore Battery’. MG (part of SAIC) claims to be the first manufacturer to mass-produce a semi-solid-state car battery following over 12 years of R&D.
This announcement was part of the company’s inaugural Tech Day for 2026, where MG spoke about its new upcoming MG Hybrid+ tech and a new European engineering centre in Germany.
MG expects its new SolidCore batteries to go into production by the end of 2026 and it’ll be used in an updated version of the recently launched MG4 Urban. As of writing in March 2026, the details about energy density are a bit scarce, but more information will be released in due course. Production of the batteries has already started in China.
SolidCore is the result of 12 years’ R&D by SAIC
MG has highlighted some main benefits of using semi-solid state batteries, such as 15% faster charging in low temperatures than LFP and 20% quicker response for power; this could also see an improvement in real-world winter range but that remains to be seen. Semi-solid-state batteries are set to be significantly lighter than other battery types, which should also contribute to overall performance improvements.
The MG4 Urban (known as just MG4 in China) with a semi-solid state battery is already available in China, although pricing is a bit different, with the LFP version costing 70,000 yuan £7,500, and the solid state version costing 100,000 yuan, about £11,000.
MG is due to launch the solid-state battery version of the MG4 Urban later this year. Prices are to be confirmed as are the finer details. More news as we get it.
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