【人民日报】中国科大低成本化解全固态锂电池界面问题

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]