Key facts
- Solid-state battery technology is at "level four" of nine for technological readiness.
- Mass production of solid-state batteries is unlikely before 2030.
- Manufacturing challenges for solid-state batteries include the solid-solid interface layer.
- Europe can learn from China on electric truck infrastructure.
- The primary obstacle for electric trucks in Europe is energy infrastructure, not vehicle technology.
- Infrastructure includes grids and charging networks for electric trucks.
CATL Chairman Zeng Yuqun has stated that solid-state battery technology is still a considerable distance from mass production. He characterized its technological readiness as "level four" on a scale of one to nine, implying that widespread commercialization is not expected before 2030. Zeng highlighted that substantial manufacturing challenges remain, with particular difficulties identified in addressing the solid-solid interface layer, a critical component for solid-state batteries.