Core Viewpoint - The 2025 Shenzhen International Battery Technology Exhibition (CIBF) showcases over 3000 exhibitors, highlighting advancements in battery technology across the entire industry chain, focusing on eight core technological directions [2]. Group 1: Solid-State Batteries - Solid-state batteries are seen as the ultimate solution to energy density and safety challenges, with over 20 companies competing in this area, indicating a shift from sample demonstrations to large-scale production [4]. - Full solid-state batteries replace traditional electrolytes with solid electrolytes, significantly enhancing safety and energy density, with companies like Guoxuan High-Tech achieving energy densities of 300Wh/kg, a 20%-50% improvement over mainstream lithium batteries [5]. - CATL is advancing both oxide and sulfide solid-state battery technologies, with energy densities of 280Wh/kg and plans for mass production by 2026 [5][6]. Group 2: Sodium-Ion Batteries - Sodium-ion batteries are emerging as a low-cost alternative due to abundant sodium resources, with over 30 companies showcasing second-generation sodium battery technologies that achieve a 30% cost reduction and a 20% performance improvement [10]. - CATL's second-generation sodium-ion battery has an energy density of 160Wh/kg and costs below 0.4 yuan/Wh, with a cycle life exceeding 5000 times [11]. Group 3: Fast Charging and Smart Equipment - Fast charging technologies and smart manufacturing equipment are critical for addressing range anxiety in electric vehicles, with advancements leading to a "10-minute refueling era" [14]. - CATL's "Shenxing PLUS" battery supports a 10-minute charge for an additional 600km range, while BYD's upgraded blade battery achieves a 10-minute charge for 400km [16]. Group 4: Multi-Material Development - Material innovation remains a key theme, with breakthroughs in composite copper foils and new separator materials enhancing battery performance [20]. - Composite copper foils are being developed to improve safety and energy density, with companies like Putailai showcasing ultra-thin foils that reduce internal resistance by 15% [21]. Group 5: Full-Scene Applications - The battery technology landscape is expanding from single energy supply to full-scene energy coverage, with specialized batteries for commercial vehicles and eVTOLs [28]. - Commercial vehicle batteries are designed for high durability and efficiency, with companies like CATL and Ruipu showcasing batteries with cycle lives exceeding 8000 times [29]. Group 6: Lithium Metal Batteries - Lithium metal batteries are positioned as the next generation of high energy density technology, with companies focusing on suppressing lithium dendrite growth and enhancing interface stability [34]. - Multi-Flor's fluorine-based electrolyte technology improves cycle life to 500 cycles, while WeiLan's lithium metal battery achieves an energy density of 450Wh/kg [35]. Group 7: Battery Recycling Technology - Battery recycling is crucial for sustainable development, with companies showcasing technologies for high-value recovery of metals like lithium, nickel, and cobalt [36]. - GreenMei's dual-mode recycling system achieves over 95% lithium recovery and 98% nickel-cobalt-manganese recovery, enhancing the efficiency of battery recycling processes [37]. Conclusion - The CIBF 2025 exhibition illustrates a transformative future for the battery industry, emphasizing high performance, low costs, and sustainable practices across various applications [39].