From 0D to 3D:Hierarchical structured high-performance free-standing silicon anodes based on binder-induced topological network architecture

作     者：Yihong Tong Ruicheng Cao Guanghui Xu Yifeng Xia Hongyuan Xu Hong Jin Hui Xu Yihong Tong;Ruicheng Cao;Guanghui Xu;Yifeng Xia;Hongyuan Xu;Hong Jin;Hui Xu

作者机构：Xi’an Jiaotong University Suzhou AcademySuzhou 215123JiangsuChina Nano Science and Technology InstituteUniversity of Science and Technology of ChinaSuzhou 215123JiangsuChina 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2024年第93卷第6期

页      面：16-23,I0002页

核心收录：

学科分类：081702[工学-化学工艺] 0808[工学-电气工程] 08[工学] 0817[工学-化学工程与技术] 

基　　金：sponsored by the National Natural Science Foundation of China(21905221,21805221) the Suzhou Technological innovation of key industries-research and development of key technologies(SGC2021118) 

主　　题：Topological network Self-stabilization Flexibility Free-standing Silicon anode 

摘      要：Free-standing silicon anodes with high proportion of active materials have aroused great attention;however,the mechanical stability and electrochemical performance are severely ***,to resolve the appeal issues,a free-standing anode with acorrugated papershape on micro-scale and a topological crosslinking network on the submicron and nano-scale is ***,an integrated three-dimensional electrode structure is constructed based on robust carbon nanotubes network with firmly anchored SiNPs via forming interlocking *** which,the hierarchical interlocking structure is achieved by directional induction of the binder,which ensures well integration during cycling so that significantly enhances mechanical stability as well as electronic and ionic conductivity of *** from it,this anode exhibits outsta nding performance under harsh service conditions including high Si loading,ultrahigh areal capacity(33.2 mA h cm^(-2)),and high/low temperatures(-15-60℃),which significantly extends its practical ***,the optimization mechanism of this electrode is explored to verify the crack-healing and structure-integration maintaining along cycling via a unique self-stabilization ***,from both the fundamental and engineering views,this strategy offers a promising path to produce high-performance free-standing electrodes for flexible device applications especially facing volume effect challenges.