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Stellantis hits milestone on faster solid-state batteries for future EVs
The automaker plans to incorporate solid-state batteries into a demonstration fleet as early as 2026. (3 min. read)

Stellantis $STLA ( ▲ 0.97% ) clearly isn’t bailing on EVs—even amid a few setbacks in the space. In fact, you could say that the parent company of Chrysler, Dodge, Jeep, Ram (CDJR) is doubling down on its long-term commitment to electric vehicles.
The details: The automaker announced last week that it’d reached a key milestone for its solid-state battery development in partnership with U.S.-based Factorial Energy.
The automaker has successfully validated automotive-sized solid-state battery cells with 375Wh/kg energy density, which the company notes as a major step toward commercial use.
Tech for the solid-state battery cells—known as “FEST” (Factorial Electrolyte System Technology) —enables fast charging from 15% to 90% in 18 minutes, taking direct aim at potential EV buyer concerns that EVs take too long to charge.
Even more impressive, the battery cells can operate in temperatures from -30°C to 45°C (-22° F to 113° F)—addressing concerns with conventional lithium-ion batteries being hampered by extreme cold and hot conditions.
Worth noting: Stellantis plans to incorporate Factorial’s solid-state batteries into a demonstration fleet as early as 2026—though the company hasn’t said what vehicle or brand will roll out the technology. But could the automaker’s graphic illustration of the battery’s capabilities (featuring a Dodge Charger Daytona EV) be a clue?
What they’re saying: “Reaching this level of performance reflects the strengths of our collaboration with Factorial. This breakthrough puts us at the forefront of the solid-state revolution, but we are not stopping there. We continue working together to push the boundaries and deliver even more advanced solutions, bringing us closer to lighter, more efficient batteries that reduce costs for our customers,” said Ned Curic, Chief Engineering and Technology Officer for Stellantis.
Why it matters: Stellantis’ bet on solid-state batteries is a clear signal that even amid news of more gas-powered models on the horizon, the company is still looking to be a key player in the EV market.
Between the lines: Of course, getting car buyers to bite on an electric vehicle is easier said than done—as Stellantis is learning first-hand in recent months, with the launch of the new Dodge Charger Daytona EV and all-electric Jeep Wagoneer S.
The Charger Daytona EV has struggled to get off the blocks—selling only 1,947 units in Q1. For comparison, Ford sold 9,377 Mustangs over the same period.
To help charge up sales for the Wagoneer S, Jeep has already slashed up to $12,500 off the MSRP, making the SUV cheaper to lease than a Grand Cherokee in some cases.
Bottom line: A shift to solid-state batteries could greatly enhance Stellantis’ EV offerings in key vehicle segments. However, selling Chrysler, Dodge, Jeep, and Ram buyers on all-electric models will also require upping the ante in other areas, spanning new marketing ideas to new approaches at the retail level.
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