The technology behind electric vehicle batteries is constantly evolving, and the next big thing in the field are solid state batteries. As Car and Driver explained, the advantages of solid state batteries are twofold,

Advanced solid-state batteries could eventually reach price parity with current batteries. BYD’s mid and high-end electric vehicles will be the first to use the new battery technology. Several other Chinese brands and legacy automakers are also developing the tech.

The projects align with the country's Vision 2030 initiative, which aims for a 50% renewable energy mix by the end of the 2020s.

Following a report in January, BYD has now officially secured the 12.5 GWh battery energy storage system (BESS) supply deal.