Zn陽極的表面修飾，具有強大的有機無機雜種相間，用於高性能水電池

這項工作報告了一種輕鬆的方法，可以通過簡單地用Mahepe溶液將Zn箔塗上Zn陽極上的魯棒有機無機雜交層層

A hybrid organic-inorganic layer was constructed on Zn to modulate Zn2+ flux for dendrite-free and high-stability metal anodes.

在Zn上構建了雜化有機無機層，以調節Zn2+通量，以使無樹突和高穩定性金屬陽極。

The electrochemical performance of Zn metal anodes in aqueous systems is greatly affected by the formation of dendrites and side reactions induced by unstable SEI and inefficient ion transport. Herein, a strategy for modulating Zn2+ flux and optimizing the electrochemical reaction pathway is proposed by constructing a hybrid organic-inorganic layer on Zn through a simple doctor blade method to achieve efficient and stable Zn plating/stripping. The flexible organic layer serves as a barrier to suppress the direct contact between Zn and H2O, thereby minimizing HER and Zn corrosion. Moreover, this layer induces homogeneous nucleation and Zn2+ flux, promoting uniform Zn plating. After cycling, the organic layer decomposes and reacts with Zn2+ to form Zn3(PO4)2 nanocrystals, which further facilitate Zn2+ migration and maintain optimal electrochemical performance. As a result, the Zn anode exhibits outstanding electrochemical performance with low nucleation overpotential, high Coulombic efficiency, and stable cycling performance over 2000 cycles at 5 mA cm−2 and 50 °C in ZnSO4 electrolyte. Furthermore, the assembled Zn//MnO2 full batteries exhibit excellent cycling stability at 0 °C and 0.5 A g−1, achieving a capacity retention of 80% over 150 cycles. Finally, the Zn//I2 batteries display excellent cycling performance at 60 °C and 1 A g−1, with a capacity retention of 92.9% over 100 cycles. This study provides valuable insights into the design of advanced metal anodes for high-energy and high-power aqueous batteries and electrochemical devices.

水性系統中Zn金屬陽極的電化學性能受到樹突形成和不穩定的SEI和效率低下離子轉運誘導的側反應的很大影響。在此，提出了一種通過簡單的醫生刀片方法在Zn上構建混合有機無機層來調節Zn2+通量和優化電化學反應途徑的策略，以實現有效且穩定的ZN PLATING/剝離。柔性有機層是抑制Zn和H2O之間直接接觸的障礙，從而最大程度地減少了她和Zn腐蝕。此外，該層誘導均勻成核和Zn2+通量，從而促進均勻的Zn板。循環後，有機層分解並與Zn2+反應形成Zn3（PO4）2納米晶體，這進一步促進了Zn2+遷移並保持最佳的電化學性能。結果，Zn陽極表現出出色的電化學性能，低核超電勢，高庫侖效率和在5 mA cm -2和ZnSO4電解質中5 mA cm -2和50°C的2000循環的穩定循環性能。此外，組裝的Zn // MNO2完整電池在0°C和0.5 A G -1下表現出極好的循環穩定性，在150個循環中達到了80％的容量。最後，Zn // I2電池在60°C和1 A G -1的循環性能出色，在100個循環中的容量保持率為92.9％。這項研究為高能和高功率水電池和電化學設備的高級金屬陽極設計提供了寶貴的見解。