Aviation Battery System
In Development
CATL
Overview
CATL's battery system for passenger eVTOLs, built on prismatic cells with energy density as high as 350 Wh/kg. Around August 9-10, 2026 the system passed a thermal-runaway propagation test - triggering two adjacent cells simultaneously at both the center and corners of the pack - with no propagation to other cells in any test, a result CATL and China's CAAC, which was involved in manufacturing, inspection and testing, describe as a world first for a prismatic-cell aviation battery at this energy density.
Passed thermal-runaway propagation safety test around August 9-10, 2026 and ready for mass production; first application will be Autoflight's passenger eVTOLs, in which CATL is a strategic investor