Stellantis, Mercedes-Benz and Volvo Renew Sodium-Ion Battery Research to Cut Costs
Stellantis, Mercedes-Benz and Volvo Cars have restarted evaluation and R&D of sodium-ion batteries to bolster supply security and lower cell manufacturing costs. The automakers are assessing prototype cells despite sodium-ion’s higher weight and lower energy density for potential use in shorter-range EVs.
1. Automakers Resume Sodium-Ion Research
Stellantis, Mercedes-Benz and Volvo Cars have reignited evaluation, research and potential funding of sodium-ion battery technology, previously sidelined due to weight and energy-density limitations. Stellantis is assessing prototype cells for integration into future EV platforms to diversify its battery portfolio.
2. Supply Security and Cost Advantages
Sodium’s global abundance and lower raw material costs offer automakers improved supply chain security and a route to reduce cell manufacturing expenses. Stellantis aims to leverage these advantages as part of its broader EV cost optimization strategy.
3. Technical Challenges and Applications
While sodium-ion cells weigh more and store less energy than lithium-ion counterparts, they remain viable for shorter-range, urban-focused electric vehicles. Stellantis plans initial trials on entry-level EV models with a view to scaled production by 2027.