CLAIM HISTORYReviewed3 Sept 2026
IRON's production battery is reported to have shifted to a semi-solid design
XPENG presented the next-generation IRON in November 2025 as using an all-solid-state battery. On September 3, 2026, CnEVPost, citing Jipian Lab, reported that XPENG Robotics had instead selected a high-energy solid-liquid hybrid, or semi-solid, pouch-cell design for the production robot because all-solid-state cells were not ready on its manufacturing timetable. The report said an unnamed second-tier Chinese battery manufacturer had been selected as primary supplier while XPENG continued testing alternatives. XPENG had not publicly confirmed the change or identified the supplier when the report was published, so the reported sourcing decision does not establish a named supplier relationship.