Nyobolt Raises $60M at $1B Valuation for Ultrafast-Charging Batteries
Nyobolt’s batteries charge in seconds and last 20,000 cycles. The customer that made it a unicorn is a warehouse robot.
May 6, 2026 - 9:44 pm
Summary
Cambridge battery startup Nyobolt has secured $60 million in Series C funding at a $1 billion valuation, led by Symbotic, the robotics company whose warehouse robots already utilize Nyobolt’s ultrafast-charging niobium tungsten oxide cells. These batteries charge in under five minutes, endure 20,000 cycles, and are targeted towards physical AI and data center power systems rather than electric vehicles.
The Chemistry Behind the Breakthrough
Nyobolt relies on a niobium tungsten oxide anode, whose crystal structure allows for significantly enhanced lithium-ion mobility compared to graphite anodes found in conventional lithium-ion batteries. This enables incredibly fast charging speeds that would otherwise damage traditional cells. The company further optimizes this technology through proprietary cell design and integrated power electronics managing thermal and electrical dynamics during rapid charging.
Target Markets
The startup's focus is on applications requiring frequent charging, such as:
- Warehouse robots needing quick recharges between tasks.
- Data center uninterruptible power supply (UPS) systems that need to rapidly absorb and release energy.
- Autonomous machines operating continuously in industrial settings.
Unlike solid-state batteries developed for electric vehicles, which prioritize energy density and longer lifespans with less frequent charging, Nyobolt's cells are designed for high power density applications requiring rapid charging cycles.