Xpeng Iron batteries enter small batch output ahead of robot
Batteries for Xpeng’s Iron humanoid robot have entered small batch production, while the complete robot remains in the stage before formal production, according to CnEVPost. Xpeng vice president Gu Jie announced the battery update at the annual conference of the Society of Automotive Engineers of China. The company still targets mass production of Iron by the end of 2026.
Gu described a dedicated solid state battery with a high energy density design to fit the humanoid’s limited internal space. According to EV, Xpeng presented the battery as developed specifically for robots rather than adapted from its cars. That makes the update a component manufacturing development for Iron, rather than a general announcement about Xpeng’s battery technology.
Gu also said the design prevents thermal runaway from spreading and can withstand impact and nail penetration tests, CnEVPost reported, citing Sina Auto. These are company claims about the battery’s safety design and test performance.
Battery terminology leaves a chemistry question
The latest disclosure does not establish whether the Xpeng Iron batteries use the all solid state technology originally announced for the robot. At the unveiling of the latest Iron generation in November 2025, Xpeng said it would use all solid state batteries to balance weight, energy density and safety.
CnEVPost cited a September 3 report by Jipian Lab saying the production version would instead use solid liquid hybrid, or semi solid state, batteries because commercialization of the all solid state technology had not kept pace with Iron’s production schedule. Jipian Lab also reported that Xpeng had selected a second tier Chinese battery manufacturer as its main supplier.
The wording therefore warrants precision: Gu’s announcement supports small batch output of batteries described as solid state, not confirmation of the earlier all solid state specification.
Robot production remains a separate step
Xpeng commissioned Iron’s production line in Guangzhou on September 8, when a robot completed automated final assembly and walked off the line autonomously. The company said more than 80% of the line’s core processes were automated and that it had introduced an automotive grade quality system. Commissioning the line preceded the planned start of mass production.
Iron’s initial commercial roles include shopping assistance and product introductions in stores. EV reported that Xpeng plans deliveries from the first half of 2027, while chief executive He Xiaopeng has set a European rollout target for the second half of that year.
