Rechargeable aqueous zinc-ion batteries show great promise as next-generation energy storage devices given their advantages of low cost and high safety. However, dendrite growth and detrimental side reactions result in poor reversibility of Zn anodes. Here, TEG molecules were introduced as additives to regulate the solvation structure through occupying the position of water molecules in the solvation shell, which also further decreasing the de-solvation energy barrier. The lower de-solvation energy barrier is beneficial for the dissociation of solvation water molecules and help to restrain the water decomposition and the related by-products. Theoretical studies also reveal that TEG is more easily adsorbed on the surface of zinc than water molecules, electrons are more easily transferred from the TEG molecule to the zinc foil, thus promoting the uniform deposition of zinc atoms. Benefiting from the solvation structure regulation and facile de-solvation process of Zn²⁺, Zn/Zn symmetric cell achieve a long cycling life of 2000 h at the current density and capacity of 1 mA cm⁻² and 1mAh cm⁻², and a MnO₂-Zn full cell reach a superior stability of 3000 cycles at the current density of 1000 mA g⁻¹.

可充电水系锌离子电池由于具有低成本和高安全性的优点，作为下一代储能装置具有巨大的前景。然而，枝晶生长和有害的副反应导致锌阳极的可逆性较差。这里引入TEG分子作为添加剂，通过占据溶剂化壳层中水分子的位置来调节溶剂化结构，这也进一步降低了去溶剂化能垒。较低的去溶剂化能垒有利于溶剂化水分子的解离，有助于抑制水的分解和相关副产物。理论研究还表明，TEG比水分子更容易吸附在锌表面，电子更容易从TEG分子转移到锌箔上，从而促进锌原子的均匀沉积。受益于锌的溶剂化结构调节和轻松的去溶剂化过程^{2+ 、Zn/Zn对称电池在1 mA cm -2}和1mAh cm ^-2的电流密度和容量下实现了2000 h的长循环寿命，并且MnO ₂ -Zn全电池在1 mA cm -2 和1mAh cm -2 的电流密度和容量下实现了3000次循环的优异稳定性。 1000 mA g ^-1的电流密度。