发表机构
University of Chemistry and Technology Prague; Technische Universität Dresden; Center for Advancing Electronics Dresden (cfaed); Faculty of Chemistry and Food Chemistry, Technische Universität Dresden; Max Planck Institute of Microstructure Physics; Chair of Analytical Chemistry, Faculty of Chemistry and Biochemistry, Ruhr- University Bochum（布拉格化工大学; 德累斯顿工业大学; 德累斯顿先进电子中心; 德累斯顿工业大学化学与食品化学学院; 马克斯·普朗克微观结构物理研究所; 鲁尔大学波鸿分校化学与生物化学学院分析化学系）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
该研究开发了金网状中间相，通过调控锌负极界面电子与离子传输，实现均匀锌沉积，大幅提升了水系锌电池对称电池与全电池的循环稳定性。
AI 中文摘要
锌金属负极在循环过程中常面临界面反应不均匀的问题，导致锌沉积不均和枝晶生长。现有人工中间相虽可缓解副反应或调控成核，但极少能调控界面电子/电场分布，以在不断演化的锌/电解质界面维持均匀沉积。本文开发了金网状中间相（AuMI），这是一种超薄二维金气凝胶网络，兼具横向电子再分布与离子传输的开放通道。在锌的电镀/剥离过程中，导电AuMI将电子传输分布于锌表面，其多孔网状结构则保障Zn²⁺的传输，使界面反应更均匀。实验与模拟表明，AuMI可使界面电场与电流分布均匀化，促进锌的均匀电镀/剥离并限制枝晶生长。因此，经调控的界面反应模式使AuMI锌对称电池在1 mA cm⁻²/1 mAh cm⁻²条件下稳定运行3000小时，在10 mA cm⁻²/10 mAh cm⁻²条件下稳定运行1100小时；AuMI锌||NVO（NaV₃O₈·1.5H₂O）全电池在1 A g⁻¹条件下循环超5000次后仍保有80.8%的容量。这些发现凸显了人工中间相结合超薄结构、横向电子传输与开放Zn²⁺传输通道对稳定水系锌金属负极的重要性。
英文摘要
Zn metal anodes often suffer from nonuniform interfacial reactions during cycling, resulting in uneven deposition and dendrite growth. Existing artificial interphases can mitigate side reactions or regulate nucleation, but rarely achieve regulation of the interfacial electron/field distribution to sustain uniform deposition at the evolving Zn/electrolyte interface. Here, we develop an Au mesh interphase (AuMI), an ultrathin two-dimensional Au aerogel network that couples lateral electron redistribution with open pathways for ions. During Zn plating/stripping, the conductive AuMI distributes electron transport across the Zn surface, while its porous mesh preserves Zn$^{2+}$ access, enabling more uniform interfacial reactions. Experiments and simulations show that AuMI homogenizes the interfacial electric field and current distribution, promotes more uniform Zn plating/stripping, and limits dendrite growth. As a result, this regulated interfacial reaction mode enables AuMI Zn symmetric cells to operate stably for 3000 h at 1 mA cm$^{-2}$/1 mAh cm$^{-2}$ and for 1100 h at 10 mA cm$^{-2}$/10 mAh cm$^{-2}$, while AuMI Zn||NVO (NaV$_3$O$_8$\cdot$1.5H$_2$O) full cells retain 80.8 % capacity after over 5000 cycles at 1 A g$^{-1}$. These findings highlight the importance of combining ultrathin architecture, lateral electron transport, and open Zn2+ access in artificial interphases for stable aqueous Zn metal anodes.
Comments52 pages, 17 figures
