According to Zeng Yuqun, how mature is solid-state battery technology currently, and what does that imply for mass production?

Zeng Yuqun stated that 'if technological maturity is graded from 1 to 9, current solid-state battery technology is only at level 4, while level 9 represents full maturity and readiness for mass production', indicating that the technology is still far from being commercially viable at scale.

What are the two main advantages of solid-state batteries highlighted in the article?

The article highlights that solid-state batteries replace liquid electrolytes with solid electrolytes to significantly increase energy density—projected to reach 1000 Wh/kg—and eliminate safety risks associated with electrolyte leakage, thereby enhancing automotive safety.

CATL's Zeng Yuqun: Solid-State Battery Technology Not Yet Mature, Mass Production Still Distant

Jun 25, 2026

CATL Chairman Zeng Yuqun stated solid-state battery tech is at level 4 of 9, meaning mass production is distant. Future benefits include 1000 Wh/kg energy density and enhanced safety.

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CATL's Zeng Yuqun: Solid-State Battery Technology Not Yet Mature, Mass Production Still Distant

CATL's Zeng Yuqun: Solid-State Battery Technology Not Yet Mature, Mass Production Still Distant

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