– For seven years, the land sat silent. Locals called it “Toyota’s reserve.” A 1,500-acre plot of industrial flatland, zoned, graded, and connected to a private rail spur, yet devoid of any assembly line. The project was internally codenamed A11 —a designation that never appeared on any public blueprint.
The facility will not build a single car. Instead, it feeds battery packs to in Kyushu, Tohoku, and the new "E-Motors" factory in Nagoya. 3. Engineering Deep Dive: The "Dry Room on Steroids" Walking inside A11 today is like entering a semiconductor fab. The air is filtered to ISO Class 6 standards—cleaner than most operating rooms. Why? Toyota is mass-producing its next-gen bipolar LFP batteries , a design that stacks electrodes without tabs or internal wiring. a11 toyota plant
Early pilot runs in Q3 2025 saw a 12% defect rate (target was 0.8%). Workers used to torquing bolts to 40 Nm suddenly had to interpret impedance spectroscopy graphs. – For seven years, the land sat silent
Then, in late 2024, the fences came down. But not for a car plant. The facility will not build a single car
| Metric | Original A11 (ICE/Hybrid) | A11 Battery Megafactory (2026) | |--------|----------------------------|--------------------------------| | Annual output | 400,000 vehicles | | | Primary product | Unibody frames & drivetrains | Bipolar lithium-iron-phosphate (LFP) cells | | Robotics density | 850 units | 2,700 units | | Water usage | 180 million gallons/year | 450 million gallons/year (90% recycled) | | Onsite power | Grid + solar | 120 MW fuel cell + 50 MW solar |