Constructing a Quasi-Liquid Interphase to Enable Highly Stable Zn-Metal Anode

Rechargeable aqueous Zn-metal batteries have attracted widespread attention owing to their safety and low cost beyond Li-metal batteries. However, due the lack of solid electrolyte interphase, problems such as dendrites, side reactions hydrogen generation severely restrict commercial applications. Herein, a quasi-liquid interphase (QLI) with “solid–liquid” property is constructed stabilize anode. The synergistic effect liquid behavior ensures stable existence QLI simultaneously enables dynamic self-adaptive anode evolution. Electrolyte erosion, Zn2+ diffusion are inhibited during long-term cycling after introducing QLI, significantly improving stability capacity retention symmetric full cells modified (Zn@QLI), respectively. Constructing an state represents promising strategy metal anodes in electrolytes even extend organic electrolytes.