Aqueous zinc (Zn) batteries (AZBs) are regarded as a prime choice for large‐scale energy storage due to their high safety and low cost. Nevertheless, the issues of Zn dendrites and side reactions seriously limit the cycling stability of AZBs. Herein, it is found that the electric field sponge effect of poly (3,4‐ethylenedioxythiophene) (PEDOT) as a model conducting polymer interphase can boost the kinetics and stability of Zn anodes. During Zn2+ plating, the electron‐rich conjugated π─π bonds can accelerate Zn2+ migration and reduction. During Zn2+ stripping, the electron‐deficient conjugated π─π bonds can promote Zn2+ transfer from the Zn substrate into electrolytes. The Coulombic attractive/repulsive force‐regulated Zn2+‐plating/stripping behavior is similar to the absorbing/squeezing processes of water from sponges, so the electric field sponge effect is proposed. This concept applies to other conducting polymer interphases, such as polyaniline and polypyrrole. Moreover, the presence of conducting polymer interphases effectively suppresses the water‐induced side reactions on Zn. Consequently, the Zn@PEDOT electrode manifests a superior long lifespan of 5250 h (1 and 1 mAh cm−2) and an ultra‐high current density tolerance of 80 mA cm−2 and assures the coin‐type and pouch‐type Zn‐based full batteries with excellent cycling stability.

中文翻译：

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导电聚合物界面的电场海绵效应增强了锌金属阳极的动力学和稳定性


水性锌 （Zn） 电池 （AZB） 因其安全性高、成本低而被认为是大规模储能的首选。然而，Zn 枝晶和副反应问题严重限制了 AZB 的循环稳定性。在此，发现聚（3,4-乙烯二氧噻吩）（PEDOT）作为模型导电聚合物界面的电场海绵效应可以增强 Zn 阳极的动力学和稳定性。在 Zn2+ 电镀过程中，富电子共轭 π─π 键可以加速 Zn2+ 迁移和还原。在 Zn2+ 剥离过程中，缺电子的共轭 π─π 键可以促进 Zn2+ 从 Zn 衬底转移到电解质中。库仑吸引力/排斥力调节的 Zn2+ 电镀/剥离行为类似于海绵吸收/挤压水的过程，因此提出了电场海绵效应。这个概念适用于其他导电聚合物界面，例如聚苯胺和聚吡咯。此外，导电聚合物界面的存在有效地抑制了水对 Zn 的诱导副反应。因此，Zn@PEDOT电极具有 5250 小时（1 和 1 mAh cm-2）的超长使用寿命和 80 mA cm-2 的超高电流密度公差，并确保纽扣型和软包型锌基满电池具有出色的循环稳定性。