More affordable and effective: BAIC develops an alternative to Li-ion batteries

BAIC stated that it has made significant progress in the development of sodium-ion batteries, which could become an alternative to traditional Li-ion solutions.

The main goal is to lower EV prices without losing significant performance characteristics.

At the current stage, the energy density of these batteries is around 140–160 Wh/kg, which is lower than that of current Li-ion batteries (180–250 Wh/kg). However, sodium-ion technology has its advantages. It works better in low temperatures, charges faster, and is less affected by degradation.

Besides, sodium is far more affordable than lithium and more accessible in terms of the raw material base. This is especially important amid increasing prices for raw materials and rising demand for batteries.

BAIC is considering using these batteries in budget models with a range of 300–400 km. This could make EVs more affordable for mass buyers, especially in developing countries.

The company also states increased safety: sodium-ion batteries are less likely to overheat or catch fire. This allows lower requirements for cooling systems and additionally decreases a car’s price.

If the technology is brought to an industrial level, it could take a niche in the affordable EV segment, while more expensive models will continue to use lithium or solid-state batteries.