新型电解液助力铝金属电池走向实用化

Core Insights - The research team at Tianjin University has developed a new low-corrosive "organic dichloride" electrolyte, addressing a significant barrier for the large-scale application of aluminum metal batteries [1][2] - Aluminum metal batteries show great potential in next-generation energy storage technologies due to their high theoretical capacity, abundant earth crust reserves, low cost, and three-electron transfer capabilities [1] Group 1: Technical Breakthrough - The traditional electrolyte systems for aluminum metal batteries have limitations such as high corrosion, high viscosity, high cost, and sluggish kinetics, which adversely affect battery component lifespan [1] - The innovative "organic dichloride" solvent design strategy replaces traditional ionic liquids with aluminum chloride or propyl ether organic systems, significantly reducing the overall corrosiveness of the electrolyte [1][2] - The unique "organic dichloride" structure confines all corrosive chloride ions (Cl-) around aluminum ions (Al3+), enhancing the stability and efficiency of repeated charge and discharge cycles [1] Group 2: Implications for the Industry - This breakthrough not only resolves the corrosion issue faced by aluminum metal batteries but also opens a new electrochemical reaction pathway based on cationic active species [2] - The findings provide a novel solution to common technical bottlenecks in aluminum batteries and other multivalent metal batteries, such as corrosion, sluggish kinetics, and mass transfer limitations, marking a significant step towards practical applications of aluminum metal batteries [2]