12:41 30-09-2025

24M Technologies unveils ETOP electrode-to-pack EV battery with 50% more range

U.S. company 24M Technologies has unveiled a new battery technology for electric vehicles that aims to boost driving range by 50% without increasing the pack’s physical size. The approach, called ETOP (electrode-to-pack), does away with conventional modules and instead uses a polymer film to insulate each electrode, then integrates them directly into the battery pack. The idea reads like a focused attempt to squeeze more miles out of the same footprint, not by cramming in extra hardware but by rethinking how it’s all arranged.

ETOP’s headline advantage is energy density. According to 24M, up to 80% of the pack’s volume is active material, whereas traditional designs range from 30% to 60%. The system is chemistry-agnostic, working with everything from familiar lithium-ion formulations to sodium-based batteries. On paper, those figures look compelling, and the module-free layout sounds like a smart route to more range without scaling up the pack.

Beyond higher capacity, ETOP batteries promise lower costs by eliminating pricey cans and busbars. They’re also more flexible in shape, making it possible to tailor the pack to a wide range of body styles—precisely the sort of packaging freedom that helps automakers balance efficiency and design. Prototypes are already built; one major automaker will begin testing this fall, and the first production cars with the new battery could reach the market after 2028.