Leveling the Zn Anode by Crystallographic Orientation Manipulation,Nano Letters

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Leveling the Zn Anode by Crystallographic Orientation Manipulation
Nano Letters ( IF 9.6 ) Pub Date : 2023-11-03 , DOI: 10.1021/acs.nanolett.3c02379
Jinqiu Zhou ₁ , Baojiu Hao ₁ , Yuan Meng ₁ , Hao Yang ₁ , Wanhao Chen ₁ , Lifang Zhang ₁ , Jie Liu ₁ , Chenglin Yan _{2,

3,

4} , Tao Qian _{1,

4}

Affiliation

Dendrite growth and corrosion of Zn metal anodes result in the limited reversibility of aqueous Zn metal batteries (ZMBs), hindering their prospects as large-scale energy storage devices. Inspired by the similarity of conventional electroplating industrial engineering and Zn deposition in ZMBs, we tend to utilize a low-cost leveling agent (LEA), 1,4-butynediol, to level the Zn deposition. Combining theoretical with in situ experimental characterizations, the preferential adsorption of LEA molecules on different lattice planes can contribute to crystallographic orientation manipulation of the (002) plane, causing good inhibition of dendrite growth. Additionally, the adsorption of LEA molecules on the Zn surface can also prevent undesirable corrosion. Endowed with these merits, symmetric cells and full cells with the LEA additive achieve improved stability and reversibility. This work provides new inspiration for introducing traditional electroplating additives into high-performance ZMBs and gives researchers a direction for choosing electrolyte additives, which also has potential to be applied to other metal anodes.

中文翻译：

通过晶体取向操纵整平锌阳极

锌金属阳极的枝晶生长和腐蚀导致水性锌金属电池（ZMB）的可逆性有限，阻碍了其作为大规模储能设备的前景。受传统电镀工业工程和 ZMB 中锌沉积的相似性的启发，我们倾向于使用低成本均化剂 (LEA)、1,4-丁炔二醇来平整锌沉积。结合理论和原位实验表征，LEA分子在不同晶格面上的优先吸附有助于（002）面的晶体取向操纵，从而对枝晶生长产生良好的抑制作用。此外，LEA 分子在 Zn 表面的吸附也可以防止不良腐蚀。凭借这些优点，使用 LEA 添加剂的对称电池和全电池可实现更高的稳定性和可逆性。这项工作为将传统电镀添加剂引入高性能ZMB提供了新的灵感，并为研究人员选择电解质添加剂提供了方向，这也有可能应用于其他金属阳极。

更新日期：2023-11-03

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