Cs-Induced Phase Transformation of Vanadium Oxide for High-Performance Zinc-Ion Batteries

作     者：Gan Qu Kai Guo Weijie Chen Yu Du Ye Wang Bingbing Tian Jianan Zhang Gan Qu;Kai Guo;Weijie Chen;Yu Du;Ye Wang;Bingbing Tian;Jianan Zhang

作者机构：Key Laboratory of Advanced Energy Catalytic and Functional Materials Preparation of Zhengzhou CityCollege of Materials Science and EngineeringZhengzhou UniversityZhengzhou 450001China School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou 450001China International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of EducationInstitute of Microscale OptoelectronicsShenzhen UniversityShenzhen 518060China 

出 版 物：《Energy & Environmental Materials》 (能源与环境材料（英文）)

年 卷 期：2023年第6卷第4期

页      面：265-272页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 

基　　金：financialy supported by the National Natural Science Foundation of China(Nos.22109140,21875221,and 22075223) Distinguished Young Scholars Innovation Team of Zhengzhou University(No.32320275) the Youth Talent Support Program of High-Level Talents Special Support Plan in Henan Province(ZYQR201810148) 

主　　题：cathode materials phase engineering vanadium oxide zinc-ion batteries 

摘      要：Rechargeable aqueous zinc-ion batteries are promising candidate for gridscale energy ***,the development of zinc-ion batteries has been plagued by the lack of cathode materials with high specific capacity and superior ***,hexagonal Cs_(0.3)V_(2)O_(5)cathode is fabricated and investigated in zinc-ion *** with the traditional vanadium oxides,the introduction of Cs changes the periodic atomic arrangements,which not only stabilizes the open framework structure but also facilitates the Zn^(2+)diffusion with a lower migration energy ***,high specific capacity of 543.8 mA h g^(-1)at 0.1 A g^(-1)is achieved,which surpasses most of reported cathode materials in zinc-ion *** excellent cycle life is achieved over 1000 cycles with about 87.8%capacity retention at 2 A g^(-1).Furthermore,the morphological evolution and energy storage mechanisms are also revealed via a series of *** work opens up a phase engineering strategy to fabricate the hexagonal vanadium oxide and elucidate the application of phase-dependent cathodes in zinc-ion batteries.