Low Strain Mediated Zn (0002) Plane Epitaxial Plating for Highly Stable Zinc Metal Batteries

IF 16.9 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Angewandte Chemie International Edition Pub Date : 2025-03-18 DOI:10.1002/anie.202500380

Da Zhang, Yumin Chen, Xunwen Zheng, Pingxuan Liu, Ling Miao, Yaokang Lv, Ziyang Song, Lihua Gan, Mingxian Liu

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Abstract

Optimizing the crystalline orientation to achieve stable Zn (0002) plane growth is pursued for highly reversible zinc metal batteries (ZMBs). However, the lattice strain of Zn substrate hinders stable Zn²⁺ plating/stripping and sustainable epitaxial growth of Zn (0002) texture. Herein, we present a low-strain strategy to mediate nucleated-Zn grains for stabilizing Zn²⁺ electrodeposition/stripping process and guiding sustainable Zn²⁺ growth along (0002) surfaces. Fluorinated anthracene triptycene polymer (FATP) photopolymerized on Zn exhibits nanocrystalline structure with highly ordered nanochannels (1.5 nm), enabling oriented nucleation and sustainable epitaxial stacking of Zn (0002) plane due to low nucleation energy (0.2 vs. 1.1 e⁻ Å⁻³ of pure Zn) and low grain strain (−0.2 to 0.4 vs. −0.9 to 0.9 MPa). Besides, the ordered porous FATP nanofilm refines electroplating Zn grains (9.4 vs. 26.7 µm), alleviating strain accumulation (3.7 vs. 28.2 MPa) and lattice distortion. Consequently, FATP-Zn||Cu cell achieves a high average Coulombic efficiency of 99.6% over 6000 cycles, while FATP-Zn||FATP-Zn cell shows stable plating/stripping after 5000 h. Notably, FATP-Zn||MnO₂ pouch cell (2.77 Ah) demonstrates stable operation over 1000 cycles. This work presents a new approach to designing Zn anodes with refined nucleated-Zn grains and sustainable Zn (0002) plane stacking for advanced ZMBs.

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高稳定性锌金属电池的低应变介导锌（0002）平面外延镀

为实现高可逆锌金属电池（zmb）的稳定Zn（0002）平面生长，对锌阳极的晶向进行了优化。然而，Zn衬底的晶格应变阻碍了Zn2+的稳定镀/剥离和Zn（0002）织构的持续外延生长。在此，我们提出了一种低应变策略来调解成核zn晶粒，以稳定Zn2+电沉积/剥离过程，并引导Zn2+沿着（0002）表面持续生长。在Zn上光聚合的氟化蒽-三甲烯聚合物（FATP）具有高度有序的纳米通道（1.5 nm），由于成核能低（0.2 vs.纯Zn的1.1 e−/Å3）和晶粒应变低（- 0.2 ~ 0.4 vs. - 0.9 ~ 0.9 MPa），可以实现Zn（0002）平面的定向成核和可持续的外延堆积。此外，有序多孔的FATP纳米膜细化了电镀Zn晶粒（9.4 vs. 26.7 μm），减轻了应变积累（3.7 vs. 28.2 MPa）和晶格畸变。因此，FATP-Zn||Cu电池在6000次循环中获得了99.6%的平均库仑效率，而FATP-Zn||FATP-Zn电池在5000小时后表现出稳定的镀/剥落。值得注意的是，FATP-Zn||MnO2袋电池（2.77 Ah）在1000次循环中表现出稳定的运行。本文提出了一种设计具有精炼成核Zn晶粒和可持续Zn（0002）平面堆积的先进zmb锌阳极的新方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Angewandte Chemie International Edition 化学-化学综合

CiteScore

26.60

自引率

6.60%

发文量

3549

审稿时长

1.5 months

期刊介绍： Angewandte Chemie, a journal of the German Chemical Society (GDCh), maintains a leading position among scholarly journals in general chemistry with an impressive Impact Factor of 16.6 (2022 Journal Citation Reports, Clarivate, 2023). Published weekly in a reader-friendly format, it features new articles almost every day. Established in 1887, Angewandte Chemie is a prominent chemistry journal, offering a dynamic blend of Review-type articles, Highlights, Communications, and Research Articles on a weekly basis, making it unique in the field.