Depending on the definition we already have EVs using real solid...

Depending on the definition we already have EVs using real solid state batteries. (just not with an exceptionally high energy density that the industry is developing right now)

"Samsung SDI to start mass production of solid-state batteries in 2027"

https://www.electrive.com/2024/03/05/samsung-sdi-to-start-mass-production-of-solid-state-batteries-in-2027/

"Chinese EV brand Hyper says will use all-solid-state batteries in its cars in 2026

https://www.reuters.com/business/autos-transportation/chinese-ev-brand-hyper-says-will-use-all-solid-state-batteries-its-cars-2026-2024-04-12/

"China’s SAIC Motor Says It’ll Mass-Produce Solid-State EV Batteries by 2026"

https://www.thedrive.com/news/chinas-saic-motor-says-itll-mass-produce-solid-state-ev-batteries-by-2026

"CATL expects to produce its own solid-state batteries in small series by 2027"

https://www.electrive.com/2024/04/29/catl-expects-to-produce-its-own-solid-state-batteries-in-small-series-by-2027/

"In October, Toyota and Japanese oil giant Idemitsu Kosan announced they would develop and build solid-state EV batteries. The batteries are expected to begin rolling out in 2027, with mass production following."

https://electrek.co/2024/01/11/toyota-solid-state-ev-battery-plans-750-mi-range/

https://financialpost.com/commodities/vw-plans-to-make-solid-state-batteries-ontario