Core Viewpoint - The rapid increase in lithium carbonate prices is driving companies to accelerate their investments in sodium-ion batteries, which are gaining attention due to their abundant resources and lower costs [1][2]. Group 1: Market Dynamics - Lithium carbonate prices have surged over 30% since October 9, reaching over 100,000 yuan/ton by November 20, highlighting the urgency for cost reduction in the industry [2][3]. - Sodium-ion batteries are emerging as a cost-effective alternative, with raw material costs 30% to 40% lower than lithium batteries, making them attractive for energy storage and low-end power applications [3][4]. Group 2: Industry Developments - Leading companies are increasingly investing in sodium-ion battery technology, with CATL signing a procurement agreement with Rongbai Technology to secure sodium battery materials, indicating confidence in the market potential [4][6]. - Companies like Xinheng Technology are also investing in sodium-ion battery production, with plans for a 10,000-ton annual capacity for sodium battery materials, enhancing their market competitiveness [4][5]. Group 3: Technological Advancements - Sodium-ion batteries are showing significant advantages in safety, cost, and performance, with capabilities such as maintaining 90% capacity at -40°C and a long-term operational cost potentially as low as 0.19 yuan/Wh [4][7]. - The technology is advancing, with major players like CATL achieving breakthroughs in sodium battery materials, including layered oxides and polyanionic systems, which are now in stable mass production [8]. Group 4: Application Scenarios - Sodium-ion batteries are being recognized for their potential in various applications, particularly in energy storage, where their low cost and safety features are advantageous [7][9]. - The market for sodium-ion batteries is expected to grow, with projections indicating a shift in the ratio of lithium iron phosphate to sodium batteries by 2035, suggesting a significant increase in demand for sodium battery materials [8].