信宇人 应用技术研究院 谢尚辰：卤化物固态电解质的技术进展

Core Viewpoint - The article discusses the advancements in solid-state battery technology, particularly focusing on halide solid electrolytes, which are seen as a promising solution to the limitations of traditional liquid electrolyte batteries [1][10]. Group 1: Event Overview - The 2025 (10th) Lithium Battery Industry Annual Conference and the Lithium Golden Tripod Award Ceremony were held in Shenzhen, gathering over 800 attendees to discuss core topics in lithium batteries, materials, and equipment [1]. - The event included a forum on user-side energy storage and battery technology, emphasizing the exploration of technological breakthroughs and safety challenges [1]. Group 2: Technical Insights - Traditional liquid batteries face significant issues, including flammability, lithium dendrite growth, and limited temperature ranges, which hinder energy density improvements [5][6][7][8]. - Solid-state electrolytes are proposed as a key enabling technology for next-generation batteries, offering enhanced safety, longer cycle life, and higher energy density [10]. Group 3: Halide Solid Electrolytes - Halide solid electrolytes have gained attention due to their room temperature ionic conductivity reaching 10^-3 S/cm, making them competitive with liquid electrolytes [11]. - They exhibit better electrochemical compatibility with high-voltage cathodes and have unique potential in safety and cycling stability [11]. - The development history of halide solid electrolytes shows significant progress since 2018, marking the emergence of the second generation with improved ionic conductivity [12]. Group 4: Comparative Analysis - Halide solid electrolytes offer a balance of ionic conductivity, mechanical properties, and electrochemical stability compared to sulfide and oxide solid electrolytes [14][15]. - While sulfide electrolytes have the highest ionic conductivity, they are sensitive to air and humidity, whereas halides provide better oxidation stability and lower costs [14]. Group 5: Future Directions - The company plans to advance its first-generation halide products into pilot testing, focusing on performance validation in soft-pack batteries [19]. - The second-generation halide materials will continue to optimize electrochemical performance and expand the application range of solid electrolyte systems [20]. - The company, headquartered in Shenzhen, aims to integrate high-end equipment, new processes, and new materials into its product development strategy [20].