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A Highly Reversible Zn Anode with Intrinsically Safe Organic Electrolyte for Long‐Cycle‐Life Batteries
Author(s) -
Naveed Ahmad,
Yang Huijun,
Shao Yuyan,
Yang Jun,
Yanuli,
Liu Jun,
Shi Siqi,
Zhang Liwen,
Ye Anjiang,
He Bing,
Wang Jiulin
Publication year - 2019
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201900668
Subject(s) - anode , faraday efficiency , materials science , electrolyte , dendrite (mathematics) , stripping (fiber) , electrochemistry , chemical engineering , galvanic anode , plating (geology) , foil method , zinc , trimethyl phosphate , phosphate , inorganic chemistry , nanotechnology , electrode , cathodic protection , metallurgy , organic chemistry , composite material , chemistry , geometry , mathematics , geophysics , geology , engineering
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.