CATL bets on RoboParty: China's battery giant enters the humanoid race sideways

The world's largest battery maker takes a stake in a HIT-founded open-source humanoid startup. Not a VC move - an integration play.

In plain terms. CATL, China's biggest battery maker, has invested in RoboParty - a humanoid robotics startup founded by a 22-year-old Harbin Institute of Technology (HIT) engineer, Huang Yi, pushing an open-source full-stack bipedal robot. Pandaily reports the startup has seen a 20× valuation growth.

The Facts

According to Pandaily on August 3, 2026, RoboParty has closed an Angel + Pre-A round of approximately 500 million yuan (~$70M at the day's rate), with CATL being the sole Pre-A investor. The startup, founded by Huang Yi (22, HIT), is developing an open-source, full-stack bipedal humanoid robot centered around the RPO robot. Its valuation has reportedly grown 20× since inception.

Our Take

The signal isn’t the funding round—humanoid funding rounds in China are commonplace—it’s who is investing. CATL isn’t a deep-tech VC; it’s the energy supplier to nearly every industrial moving part in China. Three non-exclusive interpretations: (1) vertical integration from batteries to robotics, as CATL seeks applications beyond EVs where margins are shrinking; (2) a strategic hedge into a sector that could become a major consumer of high-density cells; (3) access to operational data from an open-source robot to design the next generation of battery packs. The fact that CATL entered alone in the Pre-A, excluding other Chinese strategics, also suggests this isn’t a signaling ticket but a calibrated bet.

Industry Context

China’s humanoid landscape has densified this summer: Xpeng announces a global launch in 2027 (#1154), Xiaomi opens Robotics-U0 (#1139), LimX demonstrates tech rivaling Figure (#1169), Unitree tempers the hype (#1471), and Xiaomi is already shipping units in EV factories (#1337). RoboParty stands out for (a) its academic origin—HIT is a recognized robotics hub, (b) its open-source model, and (c) the entry of an energy industrialist rather than a tech fund.

Under the Hood

A bipedal humanoid typically consumes 300–800 W in continuous operation, with peaks of 2–3 kW during dynamic balancing, jumping, or recovery. Energy density (Wh/kg) and instantaneous power (C-rate) are two different curves—and it’s the latter that CATL masters better than competitors thanks to its high-performance battery packs. Humanoids demand higher C-rates than average EVs: a natural fit for capturing next-gen pack R&D.

So What

For those tracking China’s AI industry: this isn’t a robot story—it’s a battery-to-robot vertical integration story. If BYD replicates a similar move within six months, we’ll know a new front has opened.

Watchlist

• Exact breakdown of CATL’s Pre-A ticket if disclosed later
• Adoption of RoboParty by Western university labs (testing open-source credibility)
• BYD’s response (the other Chinese battery giant)
• Subsequent announcements on “humanoid-grade” packs from CATL