A research team headed by Shenyanbin from the Suzhou Institute of Nano-Tech and Nano-Bionics at the Chinese Academy of Sciences has recently published a groundbreaking study in ACS Energy Letters, titled "Heated-to-Frozen Electrochemical Interphases Formation Strategy Enables Stable 4.5 V Li-metal Batteries in Ether-based Electrolyte." The study introduces an innovative temperature control method designed to enhance the cycling stability of high-voltage lithium metal batteries utilizing ether-based electrolyte systems.

This strategy involves adjusting the solvation structure and decomposition dynamics of the electrolyte through a combination of high-temperature pre-charging and low-temperature storage. This approach results in the formation of a denser and more stable electrochemical interface layer, significantly improving the cycle stability of lithium metal batteries operating at a high voltage of 4.5V. This accomplishment is anticipated to offer fresh perspectives and advancements in the development of high-energy-density batteries.