Reactivation of an air-passivated lithium metal anode through halogen regulation

Abstract

Iodine is utilized to remove the passivation layer on the metallic Li surface and generate a protective layer rich in lithium iodide, thereby reactivating the deactivated metallic Li.

A bifunctional surfactant-like electrolyte additive for a stable lithium metal anode

“…1,2 However, LMAs encounter challenges such as uneven lithium-ion (Li + ) deposition, unstable solid electrolyte interphase (SEI) leading to rupture due to volume expansion, dendrite growth, and exposure of fresh Li to side reactions. 3,4 To mitigate these issues, diverse strategies including SEI artificial construction, 5–7 3D Li host material design, 8–10 and electrolyte composition optimization have been explored. 11–13…”

Stable cyclic ether as an electrolyte additive for high-performance lithium metal batteries

“…1 However, LMAs face critical challenges such as uneven lithium-ion (Li + ) deposition and severe interfacial side reactions during cycling, which result in a limited cycle lifespan for lithium metal batteries (LMBs) that is insufficient for practical applications. 2 To address these issues and improve the stability of LMBs, researchers have developed various protective strategies, including the construction of artificial protective layers, 3,4 the optimization of current collectors, 5,6 the alteration of the external environmental conditions, 7,8 and the design of novel electrolytes. 9,10…”