BYD says solid-state EV battery model is coming in 2027
Chinese automaker BYD says it will launch its first electric vehicle with a solid-state battery in 2027, claiming a leading position in commercializing the technology. The new batteries promise longer range and faster charging for EVs.
BYD Executive Vice President Stella Li said in a recent interview with Carwow's Spanish outlet that the company holds a "leading position" in both solid-state battery technology and its commercialization. As proof, she pointed to a model launching next year that will be the company's first to feature the technology.
Li's comments echo plans previously shared by Sun Huajun, Chief Technology Officer of BYD's battery subsidiary FinDreams, at a battery conference in February. Sun said BYD would offer its first demonstration and installation of solid-state batteries in 2027, ahead of mass production expected around 2030.
High-end models first
BYD Chief Scientist Lian Yubo said at the same conference that solid-state batteries would mainly be used in high-end models, working alongside — rather than replacing — the company's lithium iron phosphate batteries, which will continue to be used across different vehicle tiers.
Why solid-state matters
Unlike lithium-ion batteries, which move ions through a liquid electrolyte solution, solid-state batteries use solid electrolytes made from oxides, polymers or sulfides — BYD is developing the sulfide type. This allows for higher energy density, enabling smaller, lighter batteries with longer range. Solid-state batteries are also considered safer, as they are less prone to catching fire and can better withstand extreme temperatures.
Cost remains the main obstacle, which is why BYD's solid-state technology is expected to debut on more expensive models first, possibly including a future version of the Denza Z.
BYD is among several automakers racing to bring solid-state battery vehicles to market. Toyota has committed to 2027 or 2028, Mercedes-Benz is testing a solid-state EQS and plans to ship before the decade ends, Stellantis began road testing a solid-state Dodge Charger in 2026, and Honda recently partnered with QuantumScape on the technology.
