Design of a 3D mixed conducting scaffold toward stable metallic sodium anodes

作     者：Hua-Bin Sun Hao-Yu Fu Yang-Yang Huang Xue-Ying Zheng Ying Huang Rui Lin Wei Luo Hua-Bin Sun;Hao-Yu Fu;Yang-Yang Huang;Xue-Ying Zheng;Ying Huang;Rui Lin;Wei Luo

作者机构：School of Automotive StudyTongji UniversityShanghai201804China Institute of New Energy for VehiclesSchool of Materials Science and EngineeringTongji UniversityShanghai201804China Department of ChemistryVirginia TechBlacksburgVA24061USA 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2022年第41卷第10期

页      面：3336-3342页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：financially supported by the National Natural Science Foundation of China(No.21975186) 

主　　题：cycling metallic sodium 

摘      要：Metallic sodium anodes have attracted great attention because of their high capacity and low redox ***,they still encounter various challenges in stripping/plating efficiency and cycling stability due to dendrite formation and the large volume *** address these issues,here we engineer a three-dimensional(3D)mixed conducting scaffold for metallic sodium anodes in which an interconnected ion-conductive pathway is incorporated by adding active additives,which firmly bond with sodium at high *** incorporation of a 3D Ni foam offers the electron transport pathway with inherent high electronic *** a 3D mixed conducting scaffold can also lower the local current density and alleviate volume fluctuation effectively,which ensures a homogeneous ion distribution and long cycle *** results provide an important insight into the design of high stability and high-safe metallic sodium anodes.