Published by Global Banking & Finance Review®
Posted on September 19, 2025
2 min readLast updated: January 21, 2026
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Stellantis introduces a new EV battery that is lighter, faster-charging, and integrates inverter functions, reducing weight and charging time.
By Gilles Guillaume
PARIS (Reuters) - Stellantis unveiled an electric vehicle prototype on Friday featuring a faster-charging, lighter and more affordable battery that eliminates the need for a separate inverter and charger.
The IBIS (Intelligent Battery Integrated System) was developed in partnership with TotalEnergies subsidiary Saft. It is one of the first of its kind and provides weight and space savings and is easier to service, Stellantis said.
The new system is 10% more efficient than an EV with the same-sized battery and reduces charging time by an hour.
A lack of affordable models and slow charging times have been a barrier to broader public acceptance of EVs.
German manufacturer Porsche is also working on the concept of a "modular multi-level inverter" integrating numerous separate electrical components into a single unit.
The new IBIS battery is now undergoing road tests in a Peugeot e-3008.
"This milestone marks a major step forward in the electrification of mobile and stationary energy applications," Stellantis said in a press release.
According to the Franco-Italian-American automaker, this technology could be integrated into its production vehicles by the end of the decade.
Contemporary EVs use an inverter to convert the battery's direct current into alternating current to power the electric motor. In charging mode, alternating current from the grid is converted into direct current for the battery.
Stellantis said in the IBIS these functions are integrated directly into the battery using electronic control via 200 transistors, reducing vehicle weight by 40 kg (88 lb), freeing up space and reducing charging time by 15%.
(Reporting by Gilles Guillaume; Editing by Aurora Ellis)
Stellantis unveiled the IBIS (Intelligent Battery Integrated System), a faster-charging, lighter, and more affordable battery that integrates functions directly into the battery.
The IBIS battery reduces charging time by an hour and is 10% more efficient than an EV with the same-sized battery.
The design eliminates the need for a separate inverter, reduces vehicle weight by 40 kg (88 lb), and frees up space, making it easier to integrate into vehicles.
Stellantis stated that this technology could be integrated into its production vehicles by the end of the decade.
The IBIS battery addresses barriers such as the lack of affordable models and slow charging times, which have hindered broader public acceptance of EVs.
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