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Core Viewpoint - The collaboration between Changan Automobile and CATL marks a significant shift in the battery industry, with the launch of the world's first sodium-ion mass-produced passenger vehicle expected in mid-2026, indicating the commercial viability of sodium batteries after a decade of development [1][2]. Strategic Alliance - Changan Automobile has chosen CATL as its "sole partner" for the sodium battery strategy, reflecting a strong consensus on industry trends and a strategic decision to pivot towards sodium batteries as a key focus for the coming years [2]. - Changan's commitment to sodium batteries will encompass multiple brands, including Avita, Deep Blue, Qiyuan, and Gravity, with plans to launch new models featuring CATL's sodium batteries [2]. Technical Specifications - The sodium battery cells have an energy density of up to 175 Wh/kg, which is currently the highest in the industry, and vehicles equipped with these batteries will have a pure electric range exceeding 400 km [3]. - The sodium battery maintains over 90% capacity at -40°C and can operate at -50°C, with discharge power nearly three times that of conventional lithium iron phosphate batteries at -30°C [3]. - Future upgrades could increase the pure electric range to 500-600 km and hybrid range to 300-400 km, potentially covering over 50% of market demand for range [3]. Market Dynamics - The sodium battery is expected to replace lithium iron phosphate batteries in certain applications, with cost parity anticipated as production scales up, potentially capturing about 50% of the market share currently held by lithium iron phosphate batteries [4]. - The sodium battery industry is transitioning from small-scale trials to large-scale production, with projections indicating a tenfold increase in sodium battery production capacity from 11,000 tons in 2025 to over 120,000 tons in 2026 [6]. Industry Expansion - The sodium battery market is expected to grow significantly, with major players like BYD and CATL investing heavily in sodium battery projects, indicating a shift towards a more diversified battery supply chain [6]. - By 2030, the global sodium battery market is projected to approach 410 GWh for sodium-ion power batteries, nearing the 580 GWh mark for energy storage batteries, suggesting that sodium batteries will become mainstream alongside lithium batteries [7].