Submission + - First Sodium-ion Batteries in Commercial EVs (insideevs.com) 1
Geoffrey.landis writes: While lithium-ion chemistry is currently ubiquitous in commercial batteries, an alternative chemistry, the sodium-ion battery, has projected advantages by using a lower-cost, more abundant material, with potentially a lower fire hazard. Chinese battery manufacturer CATL and automaker Changan Automobile are preparing to put the world’s first passenger car powered by sodium-ion batteries on public roads by mid-2026. The CATL Naxtra sodium-ion battery will debut in the Changan Nevo A06 sedan, delivering an estimated range of around 400 kilometers (249 miles) on the China Light-Duty Test Cycle. “The launch represents a major step in the industry’s transition toward a dual-chemistry ecosystem, where sodium-ion and lithium-ion batteries complement each other to meet diverse customer needs,” CATL said in a press release. Studies show that sodium-ion batteries carry no risk of thermal runaway and are far less sensitive to extreme temperatures. From an energy density standpoint, the Naxtra battery is competitive but not revolutionary, at 175 watt-hours per kilogram, lower than nickel-rich Lithium-ion chemistries but roughly on par with LFP. That makes it more suitable for low-cost and low-range EVs as well as stationary energy storage. It reportedly operates well at cold temperatures, retaining more than 90% of its range at -40 degrees C (-40 degrees F).