Spontaneous Construction of Nucleophilic Carbonyl-Containing Interphase toward Ultrastable Zinc-Metal Anodes,Advanced Materials

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Spontaneous Construction of Nucleophilic Carbonyl-Containing Interphase toward Ultrastable Zinc-Metal Anodes
Advanced Materials ( IF 27.4 ) Pub Date : 2022-06-23 , DOI: 10.1002/adma.202202733
Pinji Wang ₁ , Shuquan Liang ₁ , Chen Chen ₂ , Xuesong Xie ₁ , Jiawen Chen ₁ , Zhenhan Liu ₁ , Yan Tang ₁ , Bingan Lu ₃ , Jiang Zhou ₁

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Multifunctional interfacial engineering on the Zn anode to conquer dendrite growth, hydrogen evolution, and the sluggish kinetics associated with Zn deposition is highly desirable for boosting the commercialization of aqueous zinc-ion batteries. Herein, a spontaneous construction of carbonyl-containing layer on a Zn anode (Zn@ZCO) is rationally designed as an ion redistributor and functional protective interphase. It has strong zincphilicity and dendrite suppression ability due to the significant interaction of the highly electronegative and highly nucleophilic carbonyl oxygen, favoring ion transport and homogenizing Zn deposition effectively. On the other side, the hydrogen bond formed by the proton acceptor of oxygen atom in ZCO regulates the Zn-ion desolvation process at the interfaces, thus bounding water activity and then mitigating water-induced parasitic reactions. Consequently, the Zn@ZCO anode exhibits an extended cycling lifespan of 5000 h (>208 days) with a dendrite-free surface and negligible by-products. More encouragingly, the effectiveness is also convincing in NH₄V₄O₁₀-based full-cells with excellent rate performance and cyclic stability. The stabilized Zn anode enabled by the strategy of spontaneous construction of functional solid electrolyte interphase brings forward a facile and instructive approach toward high-performance zinc-storage systems.

中文翻译：

自发构建超稳定锌金属阳极的含亲核羰基界面

在锌负极上进行多功能界面工程以克服枝晶生长、析氢和与锌沉积相关的缓慢动力学对于促进水系锌离子电池的商业化是非常可取的。在此，在锌阳极（Zn@ZCO）上自发构建含羰基层被合理地设计为离子再分配器和功能保护界面。由于高负电性和高亲核性羰基氧的显着相互作用，它具有很强的亲锌性和抑制枝晶的能力，有利于离子传输和有效地均匀锌沉积。另一方面，由 ZCO 中氧原子的质子受体形成的氢键调节界面处的 Zn 离子去溶剂化过程，从而限制水分活度，然后减轻水引起的寄生反应。因此，Zn@ZCO 阳极具有 5000 小时（>208 天）的延长循环寿命，表面无枝晶且副产物可忽略不计。更令人鼓舞的是，NH 的有效性也令人信服₄ V ₄ O ₁₀基全电池，具有优异的倍率性能和循环稳定性。通过功能性固体电解质界面的自发构建策略实现的稳定锌负极为高性能储锌系统提供了一种简便且具有指导意义的方法。

更新日期：2022-06-23

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