CATL‘s next-generation Sodium-ion Battery, known as Naxtra, is making waves in the electric vehicle (EV) industry. This innovative battery aims to address the growing demand for energy efficiency, longer range, and increased sustainability for EVs.
The Naxtra Sodium-ion Battery Features
CATL has unveiled the Naxtra battery as part of its commitment to developing advanced solutions for EVs. Naxtra boasts a pure electric range exceeding 500 km (310 miles). It also has a lifespan of 10,000 charging cycles, translating into a projected road life of 3.6 million miles — significantly longer than lithium iron phosphate (LFP) batteries.
Fast Charging Performance
Charging speed challenges are common in colder regions for Lithium-ion batteries. Naxtra solves this issue by achieving 80% state of charge in just 15 minutes, even at room temperature. The battery maintains fast-charging capabilities across a wide operational range from −40°C to 70°C, enabling efficient charging under varied conditions.
Energy Density and Efficiency
Energy density is vital for determining an EV’s driving range. The Naxtra battery delivers 175 Wh/kg, which is the highest energy density among sodium-ion batteries and nearly equal to LFP batteries. Moreover, it retains 90% of usable power at −40°C without significant degradation — a major advantage compared to Lithium-ion alternatives.
Advantages of Sodium-Ion Technology
Sodium-ion batteries provide several benefits over traditional Lithium-ion batteries. Sodium is abundant, cost-effective, and requires less carbon during operation. This reduces dependency on limited lithium reserves, ensuring a sustainable supply chain for the EV industry. Additionally, sodium-based batteries exhibit better performance in colder climates.
Safety is another standout attribute. CATL designed the Naxtra battery to be flame-proof and explosion-proof, minimizing fire risks in vehicles. These safety features give drivers peace of mind while meeting stringent national certifications, such as China’s GB 38031-2025 safety standard for EV power batteries.
Mass Production and Market Prospects
CATL plans to begin mass production of its second-generation sodium-ion batteries in 2026. With a strategic partnership with Li Auto, the company is poised to expand its market reach. Li Auto, a Chinese premium smart EV manufacturer, plans to integrate Naxtra into its upcoming vehicle models, focusing on efficiency and sustainability.
Meeting Consumer Needs
Consumers increasingly prioritize fast charging, long lifespans, and safety in EV batteries. Naxtra addresses these concerns while offering high energy density and sustainable materials. Its performance across climates, extended charge cycles, and compatibility with modern EV designs make it a promising choice for automakers and consumers alike.
CATL continues to lead the charge in advancing Sodium-ion Battery technology. With the imminent launch of its second-generation batteries, it is set to pave the way for a more sustainable and efficient future for electric mobility.
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