BYD aims to launch solid-state battery vehicle in 2027

BYD, a major Chinese electric vehicle manufacturer, plans to introduce its first vehicle equipped with a solid-state battery as early as 2027. These batteries are expected to offer greater energy density and enhanced safety compared to traditional lithium-ion batteries, which use liquid electrolyte.

Solid-state battery development timeline

BYD began researching fully solid batteries in 2013, with technical validation starting in 2016. The current focus is on sulfur-based solid electrolytes, which pose challenges in stability, manufacturing, and lifespan. The company aims to reach an energy density of 400 Wh/kg, nearly double its current Blade Battery’s 200 Wh/kg.

BYD prepares for solid-state battery production

BYD has started adapting its factories for solid-state battery production. A pilot line in Pingshan, Shenzhen, began operations in February 2026, with an annual capacity of about 2 GWh. A larger plant in Bishan, Chongqing, is planned with a first-phase capacity of up to 20 GWh, with construction expected to start in late 2026.

Gradual deployment of solid-state batteries

The first solid-state battery vehicles are likely to be in BYD’s premium ranges, such as Yangwang and Denza. This is due to the high production costs of the new batteries. FinDreams Battery plans a demonstration phase around 2027, with production scaling up to thousands of vehicles by 2030, depending on future progress.

BYD continues to develop alternative battery technologies

Despite the push for solid-state batteries, BYD is still improving its existing Blade batteries, which use lithium-iron-phosphate chemistry. The company is also exploring sodium-ion batteries, which could offer cost and durability advantages. The 2027 launch of a solid-state battery vehicle will be a step forward, but widespread market transformation will depend on real-world performance and cost efficiency.