文献类型：期刊文献

英文题名：Zincophilic Sn sites induced the local ion enrichment for compact and homogenous growth of Zn biscuits in long-life Zn metal batteries

作者：Liu, Tiancun[1];Xu, Yi[2];Fang, Haoyan[2];Chen, Ling[2];Ying, Jiadi[1];Guo, Min[1];Wang, Yeqing[1];Shen, Qi[1];Wang, Xusheng[3];Wang, Yong[2];Yu, Zhixin[1]

机构：[1]Shaoxing Univ, Inst New Energy, Sch Chem & Chem Engn, Shaoxing 312000, Zhejiang, Peoples R China;[2]Shanghai Univ, Sch Environm & Chem Engn, Dept Chem Engn, Shanghai 200444, Peoples R China;[3]Zhejiang Sci Tech Univ, Sch Mat Sci & Engn, Hangzhou 310018, Peoples R China

年份：2024

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY A

收录：SCI-EXPANDED(收录号：WOS:001137894400001)、、EI(收录号：20240215350076)、Scopus(收录号：2-s2.0-85181741572)、WOS

基金：This research was supported by the Zhejiang Provincial Natural Science Foundation of China under Grant No. LQ23E030016 and LQ23B030005, China Postdoctoral Science Foundation (No. 2023M733154) and National Natural Science Foundation of China (22208220) for their financial support. The authors also appreciate the High Performance Computing Center of Shanghai University, and Shanghai Engineering Research Center of Intelligent Computing System (No. 19DZ2252600) for providing the computing resources and technical support.

语种：英文

外文关键词：Anodes - Copper - Electric batteries - Electrolytes - Manganese oxide - Musculoskeletal system

外文摘要：The inevitable formation of zinc (Zn) dendrites and side reactions impede the practical applications of long-life and stable Zn metal batteries (ZMBs). Herein, a self-supporting and zincophilic skeleton, reduced copper foam containing Sn sites (R-CF@Sn), is constructed to induce dense and homogenous Zn growth for enhancing the performance of Zn metal anode and ZMBs. A facile and effective decoration of functional Sn coating not only exhibited a high Zn ion adsorption energy to promote the uniform distribution and local enrichment, but also guided the subsequent stable Zn nucleation and dense biscuit-like Zn metal development, which was substantiated by microscopy images. Due to the positive construction of zincophilic Sn layer and rough skeleton surface, the electrolyte wettability of R-CF@Sn was greatly improved compared to that of bare copper substrate. When applied for evaluating the coulombic efficiency (CE) performance, the R-CF@Sn skeleton showed a low nucleation overpotential of 6.6 mV and maintained a high average CE value of 98% for 400 cycles at 5 mA cm-2. Moreover, a symmetric cell with R-CF@Sn plating with Zn metal of 3 mA h cm-2 could deliver prolonged lifespans of 1600 h (1 mA cm-2) and 700 h (5 mA cm-2) at a plating/stripping capacity of 1 mA h cm-2. The superior specific capacity delivery of the full cell with an MnO2 cathode further indicates the positive effect of stabilizing the Zn metal anode possessed by the R-CF@Sn skeleton. A self-supporting substrate (reduced copper foam with thin Sn decoration layer, R-CF@Sn) is prepared by a pre-oxidation and electroless plating process to achieve uniform Zn deposition and suppress dendrite formation.