An Artificial Solid Electrolyte Interphase with High Li-Ion Conductivity, Mechanical Strength, and Flexibility for Stable Lithium Metal Anodes.

Liu, Yayuan; Lin, Dingchang; Yuen, Pak Yan; Liu, Kai; Xie, Jin; Dauskardt, Reinhold H; Cui, Yi · Adv Mater · 2017

basic_science · Level V

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Abstract

An artificial solid electrolyte interphase (SEI) is demonstrated for the efficient and safe operation of a lithium metal anode. Composed of lithium-ion-conducting inorganic nanoparticles within a flexible polymer binder matrix, the rationally designed artificial SEI not only mechanically suppresses lithium dendrite formation but also promotes homogeneous lithium-ion flux, significantly enhancing the efficiency and cycle life of the lithium metal anode.