Integrated Micro Space Electrostatic Field in Aqueous Zn‐Ion Battery: Scalable Electrospray Fabrication of Porous Crystalline Anode Coating. Issue 11 (7th February 2023)

• Record Type: Journal Article
• Authors: Guo, Can; Zhou, Jie; Chen, Yuting; Zhuang, Huifen; Li, Jie; Huang, Jianlin; Zhang, Yuluan; Chen, Yifa; Li, Shun‐Li; Lan, Ya‐Qian
• Is Part Of: Angewandte Chemie international edition. Volume 62:Issue 11(2023)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2023-02-07
• Subjects: Hetero-Metallic Cluster -- Metal-Covalent Organic Frameworks -- Micro Space Electrostatic Field -- Suppression the Zn Dendrite Growth; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.202300125
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: The inhomogeneous consumption of anions and direct contact between electrolyte and anode during the Zn‐deposition process generate Zn‐dendrites and side reactions that can aggravate the space‐charge effect to hinder the practical implementation of zinc‐metal batteries (ZMBs). Herein, electrospray has been applied for the scalable fabrication (>10 000 cm 2 in a batch‐experiment) of hetero‐metallic cluster covalent‐organic‐frameworks (MCOF‐Ti6 Cu3 ) nanosheet‐coating (MNC) with integrated micro space electrostatic field for ZMBs anode protection. The MNC@Zn symmetric cell presents ultralow overpotential (≈72.8 mV) over 10 000 cycles at 1 mAh cm −2 with 20 mA cm −2, which is superior to bare Zn and state‐of‐the‐art porous crystalline materials. Theoretical calculations reveal that MNC with integrated micro space electrostatic field can facilitate the deposition‐kinetic and homogenize the electric field of anode to significantly promote the lifespan of ZMBs. Abstract : Electrospray has been applied for scalable fabrication (>10 000 cm 2 in a batch‐experiment) of hetero‐metallic cluster covalent‐organic‐frameworks (MCOF‐Ti6 Cu3 ) nanosheet‐coating (MNC) with integrated micro space electrostatic field for ZMBs anode protection.