Stellantis, the multinational automotive company, is working towards a 50% reduction in battery weight by 2030. This goal is aimed at making electric vehicles (EVs) lighter and closer in weight to their traditional combustion-engine counterparts.

Ned Curic, head of engineering and technology at Stellantis, expressed the need to address the issue of heavy batteries in EVs. He stated, “The battery today is just too heavy; the vehicle is too heavy. We shouldn’t be going backwards.”

To achieve this weight reduction, Stellantis plans to introduce new lightweight battery technologies and improve cell packaging efficiency.

Earlier this year, Stellantis made an investment in Lytten, a Silicon Valley company focused on developing lighter lithium-sulphur batteries. These batteries not only reduce weight but also cut costs and carbon emissions by using less exotic materials than conventional lithium-ion batteries.

Curic also mentioned sodium-ion batteries as a potential alternative. This technology, being developed by Chinese battery manufacturers like CATL, offers a much cheaper option.

A recent report by UBS, which included a teardown of the BYD Seal saloon, revealed the weight of current EV batteries. The lithium-iron-phosphate (LFP) battery pack in the standard 62kWh Seal accounted for 470kg of the car’s total weight of 1941kg. Similarly, the 60kWh battery pack in the Renault Mégane E-Tech Electric weighed 394kg out of the car’s overall weight of 1783kg.

To support their battery development efforts, Stellantis has established the Mirafiori battery technology center in Turin, Italy. This facility will be utilized for designing, developing, and testing battery packs, high-voltage cells, modules, and software for upcoming models from Alfa Romeo, Citroën, Fiat, Peugeot, Vauxhall, and more. The company has invested €40 million (£34.3m) in repurposing a section of a former Fiat factory to create this facility. It features 32 climatic test chambers, enabling the simultaneous testing of up to 47 battery packs.