CATL resolved sodium-ion battery core manufacturing challenge, mass production to start in 2026, company’s Chief Scientist says
On April 21, during the CATL Tech Day event, CATL announced that its sodium-ion batteries will enter mass production by 2026. When the supply chain matures, CATL expects vehicles with sodium-ion batteries to feature a range of up to 600 km.
Wu Kai, CATL’s Chief Scientist and an academician of the Chinese Academy of Engineering, declared that the company has resolved core manufacturing challenges, paving the way for large-scale production by the fourth quarter of this year.
Unlike traditional LFP or NMC batteries, sodium-ion batteries perform well in freezing conditions, as sodium-ion cells can retain about 90% of nominal capacity at -40°C. Their price is expected to be about 30% lower than LFP, and they will help strengthen the supply chain as they don’t require lithium or other scarce battery minerals. A con is lower energy density.
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CTO Gao Huan revealed that CATL has overcome four major industry hurdles: extreme moisture control, hard carbon gas generation, aluminium foil bonding bottlenecks, and mass production of self-generating anodes. The company said it has systematically addressed over 100 engineering challenges to enable commercial-scale production.
Edited by Victoria Watcher, 26 April 2026 - 11:51 PM.