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Enhanced Stability of Li Metal Anodes by Synergetic Control of Nucleation and the Solid Electrolyte Interphase
Author(s) -
Peng Zhe,
Song Junhua,
Huai Liyuan,
Jia Haiping,
Xiao Biwei,
Zou Lianfeng,
Zhu Guomin,
Martinez Abraham,
Roy Swadipta,
Murugesan Vijayakumar,
Lee Hongkyung,
Ren Xiaodi,
Li Qiuyan,
Liu Bin,
Li Xiaolin,
Wang Deyu,
Xu Wu,
Zhang JiGuang
Publication year - 2019
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201901764
Subject(s) - materials science , faraday efficiency , overpotential , anode , nucleation , electrolyte , chemical engineering , interphase , cathode , lithium (medication) , metal , half cell , inorganic chemistry , electrochemistry , electrode , metallurgy , chemistry , medicine , organic chemistry , endocrinology , working electrode , biology , genetics , engineering
Use of a protective coating on a lithium metal anode (LMA) is an effective approach to enhance its coulombic efficiency and cycling stability. Here, a facile approach to produce uniform silver nanoparticle‐decorated LMA for high‐performance Li metal batteries (LMBs) is reported. This effective treatment can lead to well‐controlled nucleation and the formation of a stable solid electrolyte interphase (SEI). Ag nanoparticles embedded in the surface of Li anodes induce uniform Li plating/stripping morphologies with reduced overpotential. More importantly, cross‐linked lithium fluoride‐rich interphase formed during Ag + reduction enables a highly stable SEI layer. Based on the Ag‐LiF decorated anodes, LMBs with LiNi 1/3 Mn 1/3 Co 1/3 O 2 cathode (≈1.8 mAh cm −2 ) can retain >80% capacity over 500 cycles. The similar approach can also be used to treat sodium metal anodes. Excellent stability (80% capacity retention in 10 000 cycles) is obtained for a Na||Na 3 V 2 (PO 4 ) 3 full cell using a Na‐Ag‐NaF/Na anode cycled in carbonate electrolyte. These results clearly indicate that synergetic control of the nucleation and SEI is an efficient approach to stabilize rechargeable metal batteries.