我学者用极低成本破解全固态锂电池界面问题

Core Viewpoint - A new low-cost solid electrolyte solution for all-solid-state lithium batteries has been developed by a professor at the University of Science and Technology of China, addressing the challenge of maintaining good interface contact without relying on high external pressure [1][2]. Group 1: Technical Innovations - The newly developed solid electrolyte, lithium zirconium aluminum chloride oxide, has a Young's modulus less than 25% and hardness less than 10% compared to other mainstream inorganic solid electrolytes, making it suitable for commercial production [2]. - The solid electrolyte maintains the form of inorganic powder, allowing for effective adaptation to large-scale roll-to-roll production processes [2]. Group 2: Performance Improvements - The new solid electrolyte enables the pressure required for stable cycling of all-solid-state lithium batteries to be reduced from tens or hundreds of megapascals to just 5 megapascals, achieving hundreds of stable cycles at this lower pressure [2]. - The core raw material for lithium zirconium aluminum chloride oxide is extremely economical, with costs being less than 5% of mainstream sulfide solid electrolytes, indicating strong commercial viability [2].