Chrysler parent company Stellantis is calling its new, Intelligent Battery Integrated System (IBIS) system a breakthrough technology that will make future EVs lighter, more efficient, and quicker. Now, that “breakthrough” tech is now moving from concept to reality.
Co-developed with Saft, Sherpa Engineering, Université Paris-Saclay, and Institut Lafayette, Stellantis’ IBIS embeds the charger and inverter functions directly into the battery pack, an integration that results in reduced design complexity, interior space savings, and lifetime easier maintenance.
That improved efficiency carries on to the battery’s second life, too. IBIS facilitates the reuse of electric vehicle batteries in second-life battery energy storage systems (BESS) applications by reducing the need for extensive (and expensive) reconditioning.
“This project reflects our belief that simplification is innovation,” explains Ned Curic, Chief Engineering and Technology Officer at Stellantis. “By rethinking and simplifying the electric powertrain architecture, we are making it lighter, more efficient, and more cost-effective. These are the kinds of innovations that help us deliver better, more affordable EVs to our customers.”
Key IBIS benefits
- up to 10% energy efficiency improvement (WLTC cycle) and 15% power gain (172 kW vs. 150 kW) with the same battery size
- reduces vehicle weight by ~40 kg and frees up to 17 liters of volume, enabling better aerodynamics and design flexibility
- early results show a 15% reduction in charging time (e.g., from 7 to 6 hours on a 7 kW AC charger), along with 10% energy savings
- easier servicing and enhanced potential for second-life battery reuse in both automotive and stationary applications
Those benefits stem from the fact that EVs spend a lot of time and energy converting Alternating Current (AC) to Direct Current (DC) and back again with the – that’s true whether we’re talking about a L2 home charger or energy harvested from regenerative braking. Doing away with that process and the hardware that goes along with it could unlocks significant weight and efficiency benefits, with some estimates indicating that an IBIS car could weigh in at 40 kg less than a conventionally-equipped BEV, while still offering similar range and performance.
IBIS has been in development for several years, with the first proof-of-concept for stationary applications being built in 2022. The news today, however, is that the first fully functional, IBIS-equipped battery electric vehicle (BEV) is finally ready to hit the road.
Stellantis’ researchers installed the system under one of the company’s new Peugeot E-3008 electric crossovers. Guilt on the STLA Medium platform, the prototype follows years of design, modeling, and simulation by both Stellantis and Saft, and (if all goes well) could pave the way for the integration of IBIS technology into Stellantis’ electric and hybrid production vehicles by the end of this decade.
Stellantis IBIS EV battery tech
SOURCE | IMAGES: Stellantis.

If you’re considering going solar, it’s always a good idea to get quotes from a few installers. To make sure you find a trusted, reliable solar installer near you that offers competitive pricing, check out EnergySage, a free service that makes it easy for you to go solar. It has hundreds of pre-vetted solar installers competing for your business, ensuring you get high-quality solutions and save 20-30% compared to going it alone. Plus, it’s free to use, and you won’t get sales calls until you select an installer and share your phone number with them.
Your personalized solar quotes are easy to compare online and you’ll get access to unbiased Energy Advisors to help you every step of the way. Get started here.
FTC: We use income earning auto affiliate links. More.