A research team, headed by Professor Gong Yongji from the Tianmushan Laboratory and in cooperation with Professor Liu Kai of Tsinghua University, has achieved remarkable advancements in electrolyte regulation for high-specific-energy lithium metal batteries. Their findings have been published in Nature Communications. The team introduced a design strategy termed "additive-reinforced coordinated solvation structure" and, based on this strategy, developed a novel electrolyte additive called TMSFS. This additive is capable of forming a beneficial interfacial layer on both the high-voltage cathode and the lithium metal anode, effectively preventing cathode structural degradation and the growth of lithium dendrites.
Utilizing this strategy, the team successfully fabricated a 10Ah-class Li//NCM811 pouch cell with an energy density of 550.7Wh/kg. Moreover, the reversible specific energy of pouch cells with lithium-rich manganese-based cathodes surpassed 602.5Wh/kg, reaching the forefront of international standards. This breakthrough provides a core technology for enhancing the power capabilities of long-endurance, low-altitude aircraft.
As the primary institution responsible for this research, the Tianmushan Laboratory has achieved several landmark accomplishments in advanced aviation technologies and high-performance aviation materials since its inception in June 2022.
