Dual zinco-phobic/-philic ferroelectric nanorods coated mesh for stable Zn anode

作者：Jingwen Ma, Wei-Shen Liu, Bo Fu, Jingji Zhang, Quan Zong, Huiwei Du, Hong Tao, Huanan Yu, Yongchun Ye, Jiangying Wang, Haijiao Xie · 发表于：Chemical Engineering Journal · 年份：2024 · DOI：10.1016/j.cej.2024.157007 · 被引用次数：20 · 研究领域：Advanced battery technologies research、Conducting polymers and applications、Perovskite Materials and Applications

Aqueous Zn-ion batteries are emerging as a promising option for energy storage systems due to their safety and environmental benefits. However, their stability and reversibility are often hindered by dendrite growth and interfacial side reactions. In this study, we introduce an innovative strategy to address these issues by engineering an artificial interfacial layer (AIL) on Zn anode surface. This AIL is composed of a dual zinco-phobic/-philic ferroelectric nanorods (FE NRs) mesh, which contrasts with the traditional BaTiO 3 nanoparticles. The BTO NRs, particularly those with exposed P 4/ mmm (100) and (211) facets enriched with oxygen vacancy, facilitate a partial phase transition from the FE tetragonal P 4 mm phase to the paraelectric tetragonal P 4/ mmm phase, thereby creating dual zinco-phobic/-philic sites. Additionally, the integration of microchannels within the FE BTO NRs mesh can efficiently modulate the electric field distribution and Zn 2+ concentration, leading to a more uniform Zn deposition, as conformed by electrochemical simulations. The Zn anode coated with the FE BTO NRs mesh exhibits impressive performance, achieving an ultralong cycle life of 3050 h at 1 mA cm −2 and 1mAh cm −2 . It sustains a Coulombic efficiency exceeding 99.8 % over 2000 cycles, highlighting its exceptional reversibility. These findings underscore the potential of the dual zinco-phobic/-philic FE NRs mesh in overcoming the challenges faced in aqueous metal-ion batteries, showcasing its...