Lithiophilic Zn Sites in Porous CuZn Alloy Induced Uniform Li Nucleation and Dendrite-Free Li Metal Deposition

Nano Letters
Shang-Sen ChiYonghong Deng

Abstract

Three-dimensional (3D) lithiophilic host is one of the most effective ways to regulate the Li dendrites and volume change in working Li metal anode. The state-of-the-art 3D lithiophilic hosts are facing one main challenge that lithiophilic layer would melt or fall off in high temperature environment when using the thermal infusion method. Herein, a 3D porous CuZn alloy host containing anchored lithiophilic Zn sites is employed to pre-store Li using the thermal infusion strategy and a 3D composite Li is thus fabricated. Benefiting from the lithiophilic Zn sites with a strong adsorption capacity with Li, which is based on the analyses of the nucleation overpotential, binding energy calculation and the operando optical observation of Li plating/stripping behaviors, facile uniform Li nucleation and dendrite-free Li deposition could be achieved in the interior of the 3D porous CuZn alloy host. Consequently, the full cells using the 3D composite Li anode and LiNi0.8Co0.1Mn0.1O2 cathode show stable cycling capability of 172 mAh g-1 at 1 C and a high Coulombic efficiency of around 99.2 % after 500 cycles. This work provides a promising strategy for manufacturing Li metal anode with remarkable enhancement in electrochemical performance.

References

Feb 8, 2008·Nature·M Armand, J-M Tarascon
Aug 21, 2013·Chemical Society Reviews·Hansu KimHun-Joon Sohn
Feb 24, 2015·Nature Communications·Jiangfeng QianJi-Guang Zhang
Oct 25, 2016·Advanced Science·Xin-Bing ChengQiang Zhang
Mar 8, 2017·Nature Nanotechnology·Dingchang LinYi Cui
Jul 29, 2017·Chemical Reviews·Xin-Bing ChengQiang Zhang
Oct 5, 2017·Proceedings of the National Academy of Sciences of the United States of America·Chen-Zi ZhaoQiang Zhang
Dec 13, 2017·Journal of the American Chemical Society·Hui DuanLi-Jun Wan
Aug 21, 2018·Advanced Materials·Song JinYan Yu
Feb 24, 2019·Nature Communications·Xiaowei ShenJohn B Goodenough

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