CATL launches Tianxing II, the world’s first mass‑produced sodium‑ion battery, delivering 10,000+ cycles and stable power at –40 °C. Learn more now.
Key specifications
The Tianxing II series is the world’s first sodium‑ion battery produced at scale, targeting light‑weight commercial electric vans and trucks. The baseline 45 kWh pack offers an energy density of 175 Wh/kg and is rated for more than 10,000 charge‑discharge cycles.
Cold‑weather performance
Unlike traditional lithium‑ion chemistry, the sodium‑ion cells retain about 90 % of their capacity at –40 °C. Even when frozen at –30 °C, the battery can be safely re‑charged, solving a major obstacle for EV operations in harsh winter regions.
Cost and material advantage
Sodium is over 1,000 times more abundant than lithium in the Earth’s crust, and extraction costs are roughly 1/20 of lithium mining. This abundance promises a long‑term reduction in battery cost, making electric vans more affordable.
Product variants
The Tianxing II line also includes three lithium‑ion options designed for specific use cases:
- Rapid‑charge model: Boosts from 20 % to 80 % state‑of‑charge in just 18 minutes, adding roughly 150 km of range to a 100 kWh vehicle.
- Long‑range model: Packs a single‑cell capacity of 253 kWh, delivering up to 800 km on a charge for inter‑city logistics.
- High‑temperature fast‑charge model: Built for intense, short‑haul deliveries in hot climates, featuring a custom liquid‑cooling system that maintains stability and extends lifespan.
Industry context
Today most electric vehicles rely on lithium‑nickel‑manganese‑cobalt (NMC), lithium‑nickel‑cobalt‑aluminum (NCA) or lithium‑iron‑phosphate (LFP) chemistries. Sodium‑ion technology emerges as a complementary solution, especially where extreme temperatures challenge conventional batteries.
With its durability, temperature resilience, and cost potential, the Tianxing II could accelerate the adoption of electric vans and light commercial trucks worldwide.