Delicate synthesis of quasi-inverse opal structural Na_(3)V_(2)(PO_(4))_(3)/N-C and Na4MnV(PO_(4))_(3)/N-C as cathode for high-rate sodium-ion batteries

作     者：Xin-Ran Qi Yuan Liu Lin-Lin Ma Bao-Xiu Hou Hong-Wei Zhang Xiao-Hui Li Ya-Shi Wang Yi-Qing Hui Ruo-Xun Wang Chong-Yang Bai Hao Liu Jian-Jun Song Xiao-Xian Zhao Xin-Ran Qi;Yuan Liu;Lin-Lin Ma;Bao-Xiu Hou;Hong-Wei Zhang;Xiao-Hui Li;Ya-Shi Wang;Yi-Qing Hui;Ruo-Xun Wang;Chong-Yang Bai;Hao Liu;Jian-Jun Song;Xiao-Xian Zhao

作者机构：Department of ChemistryCollege of ScienceHebei Agricultural UniversityBaoding 071001China College of PhysicsQingdao UniversityQingdao 266071China Centre for Clean Energy TechnologySchool of Mathematical and Physical SciencesFaculty of ScienceUniversity of Technology SydneySydney NSW 2007Australia 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2022年第41卷第5期

页      面：1637-1646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：the National Natural Science Foundation of China(Nos.22105059 and 2210051199) the Talent Introduction Program of Hebei Agricultural University(No.YJ201810) Qingdao Source Innovation Project(No.19-6-2-19-cg) the Natural Science Foundation of Shandong Province(No.ZR2021QE192) the Natural Science Foundation of Hebei Province(No.B2019204009) the China Postdoctoral Science Foundation(No.2018M630747) 

主　　题：Sodium battery Structural regulation Inverse opal structure Sodium super-ionic conductor(NASICON) Na_(3)V_(2)(PO_(4))_(3) 

摘      要：Poor conductivity and sluggish Na^(+) diffusion kinetic are two major drawbacks for practical application of sodium super-ionic conductor(NASICON) in sodium-ion batteries. In this work, we report a simple approach to synthesize quasi-inverse opal structural NASICON/N-doped carbon for the first time by a delicate one-pot solution-freeze drying-calcination process, aiming at fostering the overall electrochemical performance. Especially, the quasi-inverse opal structural Na_(3)V_(2)(PO_(4))_(3)/N-C(Q-NVP/N-C) displayed continuous pores, which provides interconnected channels for electrolyte permeation and abundant contacting interfaces between electrolyte and materials, resulting in faster kinetics of redox reaction and higher proportion of capacitive *** a cathode material for sodium-ion batteries, the Q-NVP/N-C exhibits high specific capacity of 115 mAh·g^(-1) at 1C, still 61 mAh·g^(-1) at ultra-high current density of 100C,and a specific capacity of 89.7mAh·g^(-1) after 2000 cycles at *** work displays the general validity of preparation method for not only Q-NVP/N-C,but also Na_(3)V_(2)(PO_(4))_(3),which provides a prospect for delicate synthesis of NASICON materials with excellent electrochemical performance.