Tag: Tianxing II

  • First Sodium-Ion Battery Works at -40°C with 90% Capacity Retention

    First Sodium-Ion Battery Works at -40°C with 90% Capacity Retention

    Key Takeaways

    1. CATL has launched the first sodium-ion battery for mass production, designed for low-temperature performance in commercial vehicles.
    2. The sodium-ion battery can charge in temperatures as low as -30°C and only experiences a 10% capacity reduction at -40°C.
    3. This battery is cost-effective, using abundant sodium instead of costly lithium, and is safer due to lower volatility.
    4. CATL also introduced long-range and rapid-charge battery models for light-duty vehicles, with one model offering a 500-mile range.
    5. The sodium-ion battery has an energy density of 175 Wh/kg, making it competitive with lithium iron phosphate (LFP) technology.


    The biggest battery manufacturer in the world, CATL, has introduced the first sodium-ion battery intended for mass production. This battery is promoted as a “low-temperature” option for commercial vehicles, capable of charging in frigid conditions as low as -30 degrees Celsius (-22 Fahrenheit). Even at -40 degrees, it only experiences a 10% reduction in capacity.

    Addressing Cold Weather Challenges

    CATL’s latest sodium-ion battery effectively addresses the issues faced by light electric trucks, vans, and other commercial vehicles in extremely cold environments, which current lithium-ion batteries struggle to handle.

    Cost-Effective and Safe

    Rather than relying on the costly lithium carbonate which is currently increasing in cost, CATL’s Tianxing II low-temperature battery utilizes sodium, a resource that is both plentiful and economical. The conductivity remains stable in lower temperatures and sodium is far less volatile than lithium, making the 45 kWh Na-ion battery a safer option in case of accidents.

    Enhanced Performance and New Offerings

    In addition to their sodium-ion battery designed for cold climates, CATL has also introduced new models of long-range and rapid-charge batteries for light-duty vehicles. The long-range battery features a substantial 253 kWh pack that can drive a truck up to 500 miles, while the fast-charge variant can be fully charged in just 18 minutes, meeting the needs of various fleets.

    Impressive Energy Density

    What’s particularly remarkable is that CATL’s sodium-ion battery boasts an impressive energy density of 175 Wh/kg, almost twice that of the initial commercially available sodium-ion batteries. This makes it competitive with popular and cost-effective LFP battery technology. Furthermore, there are now commercial items like the first sodium-ion jump starter available on Amazon, highlighting the growing market for this emerging battery technology.

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