Enabling High-Performance Lithium Metal Batteries by Stabilizing the Anode Interface with a Trace 6FDA Additive

at 5 C. This study demonstrates that the 6FDA additive, a fluorinated macromolecular structure, considerably improves the electrochemical performance and cycling stability of lithium metal batteries through in situ interface engineering. This approach provides a promising strategy for the development of low-cost, high-safety lithium metal batteries.