Electric vehicle (EV) manufacturers are increasingly opting for solid-state over lithium-ion (Li-ion) batteries, according to a new report from intellectual property company Appleyard Lees. Patent filings for Li-ion battery technology are plateauing while filings in solid-state innovation continue to rise rapidly, mostly driven by Japanese car and electronics manufacturers, according to the second annual edition of the Inside Green Innovation: Progress Report 2022.
Scientists testing a lithium car battery with an EV engine. (Photo by Monty Rakusen via Getty Images)
Japanese carmakers including Toyota, Hyundai and Honda are filing the most patents for solid-state battery technology – with the first Toyota EV part-powered by a solid-state battery scheduled to launch in 2025.
Market reports cited…