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Battery Startup Comes Out of Stealth to Seize On Investor Frenzy

Factorial Energy claims to have built a semi solid-state battery, entering a field that’s quickly getting crowded

A lithium-ion battery inside the Porsche AG factory in Stuttgart. Factoral Energy says it has made a solid-state battery, seen as a potential successor to the lithium-ion cell.

A lithium-ion battery inside the Porsche AG factory in Stuttgart. Factoral Energy says it has made a solid-state battery, seen as a potential successor to the lithium-ion cell.

Photographer: Krisztian Bocsi/Bloomberg
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As automakers ramp up plans to electrify their fleets, battery startups are getting an investment boost. Massachusetts-based Factorial Energy has come out of stealth mode with a next-generation battery candidate to try and tap the growing interest.

Factorial says it has built a solid-state battery, a new way of making batteries that experts think could take over from the current generation of lithium-ion cells. First commercialized in 1991, lithium-ion batteries have only improved incrementally over the past three decades. Solid-state chemistry could help give a big boost to battery performance.