On December 28, CATL announces $3750 (-1,25%) announced the official start of mass production at its supplier conference in Ningde (Fujian province).
》The message from the world's largest battery manufacturer is clear《
Sodium-ion batteries are no longer a technology of the future - they are an industrial reality.
》Sodium and lithium in parallel《
CATL describes its battery strategy for 2026 as a dual-star approach: sodium-ion batteries (SIB) and lithium-ion batteries (LIB) will be produced side by side as equal pillars in the future.
The Chinese financial medium Sina quotes CATL as predicting that both technologies will shine together.
》The division of labor is clearly defined《
Sodium will take over the volume segment - entry-level vehicles, battery swap systems and stationary energy storage systems.
Lithium remains the first choice for high-performance applications and maximum range.
This parallel strategy enables CATL to cover the entire range of the market and at the same time reduce its dependence on volatile lithium prices.
》What distinguishes Naxtra from LFP《
The battery series presented in April 2025 under the brand name Naxtra has confirmed the promised performance data in practice.
The energy density reaches 175 Wh/kg at cell level - a value that competes with conventional lithium iron phosphate (LFP) batteries, such as those used in the VW ID.3 or BYD Dolphin.
》The cold weather performance is particularly remarkable《
At -40 degrees Celsius, the Naxtra battery retains around 90 percent of its capacity - a technological breakthrough, as conventional lithium batteries hardly release any energy under these conditions.
This property makes the technology particularly interesting for Nordic markets, high altitudes and industrial applications in cold stores or Arctic regions.
》The service life significantly exceeds that of conventional battery chemistries《
CATL promises more than 10,000 charging cycles. Theoretically, this corresponds to a mileage of up to five million kilometers in a car - or decades of operation in a stationary storage unit.
In combination with the temperature resistance of -40 degrees to +70 degrees Celsius, the result is a product that is designed for extreme operating conditions.
For passenger car applications, CATL specifies a purely electric range of more than 500 kilometers. The fast-charging capability enables a charge level of 80 percent to be reached in around 15 minutes.
》First certification in accordance with GB 38031-2025《
A decisive milestone for industrial acceptance: the Naxtra battery is the world's first sodium-ion product to pass the stricter Chinese safety standard GB 38031-2025.
This national certification comes into force in mid-2026 and sets new standards for electric vehicle batteries.
Among other things, the standard requires extended thermal stability, mechanical stress tests and strict requirements for fast-charging cycle stability.
Independent third-party tests confirm that both the Naxtra cells and the complete battery packs pass all the required safety tests. For industrial customers, this means planning security and a significantly reduced liability risk.
》From city cars to gigawatt storage systems 《
The Naxtra product line comprises two main variants: a complete traction battery for passenger cars and an integrated 24-volt solution for heavy commercial vehicles. The latter combines start-stop function and on-board power supply in one system - a direct response to the requirements of the logistics industry.
》Battery swap systems《
China is investing heavily in swap stations as an alternative to traditional charging. Sodium-ion batteries, with their cold resistance and long service life, are predestined for this application, in which batteries circulate in continuous operation.
》Stationary energy storage《
The 10,000+ cycles and broad temperature tolerance make Naxtra the ideal choice for grid storage, industrial systems and home storage systems. What counts here is not energy density, but lifetime and cost per stored kilowatt hour.
》Heavy-duty commercial vehicles《
FAW Jiefang, one of the largest Chinese truck manufacturers, already relies on the 24V sodium battery. The technology can fully exploit its strengths in heavy-duty traffic with extreme temperature fluctuations and high cycle requirements.
》Car segment《
The joint project AION UT Super by CATL, GAC and JD.com relies on sodium exchangeable batteries. With an entry-level leasing price of 49,900 RMB (around 6,500 euros), the vehicle is aimed at the urban volume segment.
》The price advantage《
Sodium changes the cost structure
The strategic core of the sodium offensive lies in the availability of raw materials: sodium is around 1,000 times more abundant in the earth's crust than lithium. While lithium carbonate prices have shown extreme fluctuations in recent years - from under 30,000 to over 500,000 yuan per tonne - sodium remains stable and cheap as a raw material.
The International Renewable Energy Agency (IRENA) predicts that the cell costs for sodium batteries could fall to around 40 US dollars per kilowatt hour through scaling.
CATL itself even sees long-term potential in the range of 19 to 20 US dollars per kilowatt hour - a price level that would fundamentally change the economic viability of stationary storage systems.
》For comparison《
According to BloombergNEF, prices for LFP battery packs in stationary storage facilities fell to new lows of around USD 70 per kilowatt hour in 2025 - a drop of 45% compared to the previous year.
Sodium-ion technology has to compete against this already falling price level, but with its longevity and temperature tolerance, it offers advantages that are reflected in the total cost of ownership.
》CATL's battery triad: Naxtra, Shenxing and Freevoy《
Naxtra is part of a comprehensive product offensive with which CATL is addressing various market segments. Parallel to the sodium series, the company has brought two further technologies into mass production.
● The second generation of the Shenxing 2.0 fast-charging battery is based on LFP chemistry and achieves unprecedented values with a 12C charge rate: 520 kilometers of range after just five minutes of charging. The peak charging power is up to 1.3 megawatts. Even at -10 degrees Celsius, the battery charges from 5 to 80 percent in 15 minutes.
● The Freevoy dual-power system combines two different cell chemistries in one battery pack - similar to the concept of redundant engines in aviation. The self-forming anode technology increases the energy density to up to 1,000 Wh/L and enables theoretical ranges of over 1,500 kilometers.
》2026 as the key year of the energy transition《
The Financial Times lists the market launch of CATL Naxtra batteries as one of the "Key tests for climate action in 2026".
Jules Kortenhorst, Co-Chairman of the Energy Transitions Commission, summarizes the current situation: "The energy transition is at a tipping point - not of possibility, but of policy and implementation."
While the Trump administration is threatening to set back climate policy in the USA, technological development in Asia is accelerating.
China has integrated sodium-ion batteries as a strategic technology in its national energy and vehicle strategies. The certification and funding infrastructure is in place.
The question for Europe is how quickly the industry can react to this development.
Volkswagen's PowerCo gigafactory in Germany is scheduled to go into full operation at the beginning of 2026 - albeit with conventional lithium chemistry.
European sodium-ion projects such as those of Faradion (now part of Reliance) or Tiamat are still at earlier stages of development.
》Disruption point in battery technology《
According to the terminology of technology analyst Tony Seba, the industrial rollout of a new technology marks the "disruption point" - the moment at which the old technology is no longer competitive and displacement becomes unstoppable.
For sodium-ion batteries, 2026 could be this turning point.
The technology is no longer dependent on laboratory successes: It is certified, is produced by a company with a 38 percent global market share and has concrete customers in all relevant sectors.
The combination of technical maturity, industrial scaling and falling costs follows exactly the pattern of past technological leaps.
The disruption is less about the premium car market - where lithium remains dominant for the time being - and more about the infrastructure of the energy transition: Grid storage, logistics, industrial applications.
These are precisely the areas where longevity and cost efficiency win out over energy density.
》Conclusion《
Sodium is becoming the second pillar of the battery world.
With the start of Naxtra mass production, CATL is taking the step that the industry has been waiting years for: Sodium-ion batteries are leaving the niche and becoming an equal partner to lithium technology.
The dual-star strategy is not just a marketing platitude, but an industrial reality.
For the energy transition, this means a fundamental expansion of the technological toolbox.
Sodium addresses precisely those applications where lithium reaches its economic or practical limits: Long-term storage, extreme temperatures, continuous operation, etc.
The coming months will show how quickly the announced production capacities will actually be ramped up - and whether the West will find its own response to the Chinese sodium offensive.