锂金属负极：负极长期方向，关注各工艺领先企业——固态电池

Summary of Key Points from the Conference Call Industry Overview - The focus is on the lithium metal anode sector, which is critical for enhancing the energy density of solid-state batteries. [1][5] - The global solid-state battery shipment is projected to reach 180 GWh by 2030, with a potential demand for lithium metal anodes estimated at approximately 7,700 tons if the penetration rate reaches 20%. [1][7][13] Core Insights and Arguments - Lithium metal anodes are preferred over silicon-carbon anodes for achieving higher energy densities, especially beyond 400 Wh/kg. [1][5] - The lithium dendrite issue poses a significant challenge for lithium metal anode applications, but advancements in technology, such as artificial SEI films and multi-dimensional structural modifications, are helping to mitigate this problem. [1][6][14] - The rolling method is currently the most promising for large-scale production, with the potential to reduce lithium foil thickness from 20 microns to 5-6 microns in the coming years. [1][8][18] - Major companies leading in various production methods include: - Tian Tie Technology and Ganfeng Lithium in the rolling method - Yingli in the evaporation coating method - Dao Shi Technology and Zhong Yi Technology in liquid phase deposition. [1][9][17] Market Dynamics - The acceptance of lithium metal anodes is increasing, as evidenced by Mercedes' initiation of road tests for solid-state batteries utilizing this technology. [1][7] - The solid-state battery industry is expected to accelerate its industrialization process by 2025, with ongoing research and communication with investors to provide updates on developments. [2] Additional Important Insights - The main challenges for enhancing energy density in solid-state batteries lie in the electrolyte and anode materials, with a diminishing marginal contribution from silicon anodes after reaching 400 Wh/kg. [11][12] - The lithium metal anode is seen as a key direction for the long-term development of solid-state batteries, particularly in terms of suppressing lithium dendrite growth. [12] - Investment recommendations include focusing on leading companies in various production methods, particularly Tian Tie Technology in the rolling method, and keeping an eye on emerging technologies. [10][18]