Contemporary Amperex Technology Co. (CATL) unveiled its Tener Sodium energy storage system on June 22, 2026, the world's first field-validated sodium-ion battery storage product to reach commercial markets. The launch transforms sodium-ion technology from a promising laboratory achievement into a bankable, grid-ready asset, offering a direct alternative to lithium-based storage without the same resource constraints.
For years, sodium-ion batteries have been positioned as a hedge against volatile lithium prices and concentrated supply chains. CATL, the world's largest battery maker, accelerated development in response to booming demand for stationary storage, where energy density is less critical than in electric vehicles. The company previously outlined plans to mass-produce sodium-ion batteries this year, targeting a 600 km range for EV applications, according to CarNewsChina. The Tener Sodium system brings that technology to grid-scale storage first, where its intrinsic safety and abundant raw material advantages can be deployed immediately.
The commercial momentum is already substantial. In April 2026, CATL signed a massive 60 GWh sodium-ion battery deal with Hyperstrong, which Energy Storage described as the world's largest single order for the technology. The Tener Sodium system is the product line that will fulfill such orders, moving from testbeds to mass deployment. CATL also operates what RenewEconomy called the world's largest energy storage testbed, where the Tener Sodium's field-validated status was earned through rigorous real-world cycling.
Looking ahead, CATL is not confining sodium-ion to stationary storage. The company has developed a dual-chemistry battery platform that lets electric vehicles switch between sodium and lithium cells within the same pack, a design Interesting Engineering reported on in 2026. With Tener Sodium now shipping, CATL has established a beachhead for sodium-ion chemistry that will only expand as manufacturing scales and costs decline further.
