Chinese automaker SAIC has launched a semi-solid-state battery in a mass-produced electric car for the first time. The new MG4, introduced under the MG brand, has made history with this battery technology.

MG4 Officially Launched

The MG4 features manganese-based lithium-ion semi-solid batteries with higher energy density, replacing traditional lithium iron phosphate (LFP) batteries. This model stands out for offering this technology at an affordable price.

Prices start at under $10,000 in China and go up to $14,000 for semi-solid battery versions. The vehicle is expected to enter the European market early next year.

Unlike traditional batteries, semi-solid batteries use a gel-like electrolyte. This structure increases the batteries’ energy density while reducing the risk of fire. It also offers advantages such as longer life and faster charging.

The new MG4’s semi-solid batteries have an energy density of 180 Wh/kg. Official capacity details have not been released, but the range is estimated to be approximately 535 km. This range isn’t significantly different from existing LFP batteries. However, the real advantage lies in the longer lifespan and the convenience they provide in daily use thanks to their fast charging times.

The real revolution in the electric car world is believed to come with all-solid-state batteries. These batteries will reach much higher energy densities, such as 450 Wh/kg. While brands like Mercedes-Benz are working on this technology, Chinese manufacturers are expected to be the first to introduce it to the market.