In a groundbreaking development, a new type of battery powered by a common element found in table salt could revolutionize the electric vehicle (EV) industry in China. The sodium-ion battery, developed by Contemporary Amperex Technology (CATL), is set to debut in EVs manufactured by Changan Automobile in mid-2026.
The Naxtra battery, as it is called, boasts a remarkable ability to function at extremely low temperatures, as low as -50 degrees Celsius (-58 degrees Fahrenheit). This feature addresses a major challenge faced by EVs in cold climates, where reduced range and slower charging are common issues. The battery’s performance in winter conditions is a game-changer for regions like the United States, Canada, and Europe, where cold weather can significantly impact EV performance.
Unlike traditional lithium-ion batteries, sodium-ion batteries offer improved stability and power delivery in cold weather. The larger sodium ions form weaker bonds with the electrolyte, allowing for easier movement even in low temperatures. This translates to better power retention and capacity in winter, making sodium-ion technology a promising solution for EVs operating in cold climates.
CATL’s Naxtra battery has demonstrated impressive results in tests, delivering nearly three times the discharge power of equivalent lithium iron phosphate (LFP) batteries at -30 degrees Celsius. Charging to 90 percent capacity at -40 degrees Celsius and maintaining stable power delivery at -50 degrees Celsius are significant achievements that highlight the battery’s capabilities in extreme cold.
While the initial cost of manufacturing sodium-ion batteries is higher than lithium-ion batteries, ongoing advancements in technology and production processes are expected to drive down costs and enable mass production by the end of the decade. The improved energy density of the Naxtra battery, coupled with innovative design approaches like the cell-to-pack system, further enhance its appeal for EV manufacturers.
The successful integration of sodium-ion technology in EVs could open up new possibilities for expanding the adoption of electric vehicles in colder regions. If these vehicles perform well in real-world conditions and offer competitive pricing, sodium-ion batteries could emerge as a viable alternative to lithium-ion batteries, particularly in areas with harsh winter climates.
Overall, the development of sodium-ion batteries represents a significant step forward in the EV industry, with the potential to shape the future of electric vehicle technology and drive sustainable transportation solutions worldwide.
