Core Viewpoint - Professor Ma Cheng from the University of Science and Technology of China has proposed a low-cost, commercially viable solution to the issue of solid-state lithium batteries relying too heavily on external pressure to maintain good interface contact during cycling, as published in the renowned journal Nature Communications [1] Group 1: Solid-State Lithium Battery Challenges - Solid-state lithium batteries are expected to overcome the limitations of current liquid lithium-ion batteries in achieving both high safety and high energy density [1] - The solid electrolyte and electrode in solid-state lithium batteries require external pressures of tens to hundreds of megapascals to maintain good interface contact, which is nearly impossible to achieve in practical scenarios [1] Group 2: Proposed Solution - The key to solving this issue lies in finding a solid electrolyte that can effectively change shape under low pressure to maintain close contact with the volume-changing electrode materials [1] - The new solid electrolyte developed by Professor Ma is lithium zirconium aluminum chloride oxide, which achieves the desired performance [1]

Core Viewpoint - A new low-cost solution for solid-state lithium batteries has been proposed by Professor Ma Cheng from the University of Science and Technology of China, addressing the challenge of maintaining good interface contact under low external pressure, which is crucial for practical applications [1]. Group 1: Industry Insights - Solid-state lithium batteries have the potential to overcome the limitations of current liquid lithium-ion batteries, which struggle to balance high safety and high energy density [1]. - The challenge with solid-state batteries lies in the need for solid electrolytes and electrodes to maintain contact under high external pressures, often requiring tens to hundreds of megapascals, which is impractical in real-world scenarios [1]. Group 2: Research Developments - The key to solving the interface contact issue is to develop a solid electrolyte that can effectively change shape and maintain tight contact with the electrode materials, even under low pressure [1]. - The newly developed solid electrolyte, lithium zirconium aluminum chloride oxide, demonstrates the desired performance for commercial viability [1].

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].