全固态电池又有重大突破！研究团队回应

Core Viewpoint - The research team led by Huang Xuejie has made significant progress in addressing the interface issues of all-solid-state lithium metal batteries, which is a critical step towards their commercialization [1][3]. Group 1: Research Findings - The interface problem between lithium metal anodes and solid electrolytes has been a longstanding challenge, leading to performance degradation and failure in all-solid-state batteries [4][5]. - The research introduces a dynamic adaptive interface (DAI) strategy that utilizes pre-set anions in the solid electrolyte to form a lithium iodide-rich interface layer, which adapts to the volume changes of the lithium anode [10][12]. - Experimental results show that the DAI approach maintains a high capacity retention rate of 90.7% after 2400 cycles at a current density of 1.25 mA cm², demonstrating its effectiveness in enhancing battery performance [10][12]. Group 2: Comparative Analysis - Traditional methods, such as applying mechanical pressure, have shown to reduce initial impedance significantly but often lead to increased battery size and weight, complicating commercialization [7][8]. - The DAI method offers a promising alternative by ensuring tight contact between the solid electrolyte and lithium anode even under low or zero external pressure, which is crucial for practical applications [12][13]. - The research indicates that the DAI interface remains stable and effective, with a capacity retention of 74.4% after 300 cycles under zero external pressure, showcasing its potential for scalable applications [12][13]. Group 3: Industry Implications - The advancements in all-solid-state battery technology are attracting attention from various research institutions globally, indicating a competitive landscape in the pursuit of commercial viability [13]. - The innovative findings from Huang's team could significantly contribute to the development of electric vehicles, positioning the industry to capture a leading role in the global market [13].