Core Viewpoint - The article highlights the launch of China's first production line for sulfide solid electrolytes by Ruigu New Materials, marking a significant step in the solid-state battery industry. The company aims to enhance the performance and commercialization of solid electrolyte membranes through strategic partnerships and technological advancements [1]. Group 1: Production and Development - Ruigu New Materials has officially launched a 100-ton production line for sulfide solid electrolytes, with plans for a 1,000-ton capacity in the second phase [1]. - A strategic cooperation agreement was signed between Ruigu New Materials and Xingyuan Materials to jointly develop high-performance solid electrolyte membranes and related products [1]. - The solid-state battery industry chain is still in its nascent stage, with key areas of competition including the preparation of solid-state cells and the miniaturization of solid electrolyte materials [1]. Group 2: Technical Requirements and Challenges - The production of sulfide materials requires precise control of particle size at the nanoscale, with a growing demand for air stability as the industry scales up [1]. - The main processes for membrane formation in solid-state batteries are wet and dry methods, with wet methods being essential for ultra-thin 20μm sulfide solid electrolyte membranes [2]. - The interface impedance and contact requirements for solid-state batteries are significantly higher than those for liquid batteries, necessitating new technologies and equipment for high-precision stacking and sealing [2]. Group 3: Future Trends and Projections - From 2025 to 2035, the energy density of solid-state batteries is expected to increase from 300 Wh/kg to over 500 Wh/kg, driven by advancements in sulfide materials and electrode optimization [2]. - By 2030, the focus will shift from ionic conductivity to air stability, with future mass production aiming for ionic conductivity levels of 5 mS/m [3]. - The transition in electrode materials is anticipated to evolve from high-nickel ternary systems to lithium metal systems, ultimately leading to ultra-thin lithium metal or lithium-free electrodes [3].