A Highly Reversible Zn Anode with Intrinsically Safe Organic Electrolyte for Long‐Cycle‐Life Batteries

作者：Ahmad Naveed, Huijun Yang, Yuyan Shao, Jun Yang, Nuli Yanna, Jun Liu, Siqi Shi, Liwen Zhang, Anjiang Ye, Bing He, Jiulin Wang · 发表于：Advanced Materials · 年份：2019 · DOI：10.1002/adma.201900668 · 被引用次数：384 · 研究领域：Advanced battery technologies research、Advancements in Battery Materials、Advanced Battery Materials and Technologies

Abstract Dendrite and interfacial reactions have affected zinc (Zn) metal anodes for rechargeable batteries many years. Here, these obstacles are bypassed via adopting an intrinsically safe trimethyl phosphate (TMP)‐based electrolyte to build a stable Zn anode. Along with cycling, pristine Zn foil is gradually converted to a graphene‐analogous deposit via TMP surfactant and a Zn phosphate molecular template. This novel Zn anode morphology ensures long‐term reversible plating/stripping performance over 5000 h, a rate capability of 5 mA cm −2 , and a remarkably high Coulombic efficiency (CE) of ≈99.57% without dendrite formation. As a proof‐of‐concept, a Zn–VS 2 full cell demonstrates an ultralong lifespan, which provides an alternative for electrochemical energy storage devices.