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CATL scales sodium-ion battery production with 175 Wh/kg density
Monday, January 5, 2026 at 05:34 PM
CATL has successfully scaled production of sodium-ion batteries reaching a density of 175 Wh/kg within a three-year development cycle.
Context
CATL has officially announced plans to scale the production of its next-generation sodium-ion batteries, targeting large-scale deployment across multiple sectors by 2026. During a December 2025 supplier conference, the company confirmed that these cells have achieved a record energy density of 175 Wh/kg, effectively matching the performance of mainstream lithium iron phosphate (LFP) batteries. This milestone follows less than three years of development and positions CATL to lead a significant market shift away from volatile lithium-only supply chains.
The new technology, branded as Naxtra, supports a driving range exceeding 500 kilometers and maintains performance in extreme temperatures ranging from -40°C to 70°C. With a projected cycle life of over 10,000 cycles and manufacturing costs estimated to be 50% lower than traditional lithium-ion alternatives, the transition offers a more stable and cost-effective foundation for mass-market electric vehicles. By achieving certification under China’s newest national safety standards, CATL is now prepared to integrate these batteries into passenger vehicles, commercial trucks, and grid-scale energy storage systems starting next year.
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