Titanium nitride nanorod array/carbon cloth as flexible integrated host for highly stable lithium-sulfur batteries

作     者：Rui-Qing Liu Feng Jin Min Gu Dong-Wen Zhang Lu-Lu He Wen-Xiu Liu Wen-Feng Zhu Kun Xie Jing-Yi Wu Yi-Ran Liu Wei-Wei Yang Xiu-Jing Lin Li Shi Xiao-Miao Feng Zhen Hou Ji-Gang Zhou Yan-Wen Ma Rui-Qing Liu;Feng Jin;Min Gu;Dong-Wen Zhang;Lu-Lu He;Wen-Xiu Liu;Wen-Feng Zhu;Kun Xie;Jing-Yi Wu;Yi-Ran Liu;Wei-Wei Yang;Xiu-Jing Lin;Li Shi;Xiao-Miao Feng;Zhen Hou;Ji-Gang Zhou;Yan-Wen Ma

作者机构：State Key Laboratory of Organic Electronics and Information Displays and Institute of Advanced Materials(IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)Nanjing University of Posts and TelecommunicationsNanjing 210023China Department of Applied PhysicsThe Hong Kong Polytechnic UniversityHung Hom 1000872Hong KongChina Canadian Light Source Inc.University of SaskatchewanSaskatoonSK S7N 2V3Canada Suzhou Vocational Institute of Industrial TechnologySuzhou 215104China 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2023年第42卷第12期

页      面：4115-4127页

核心收录：

学科分类：0808[工学-电气工程] 07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：financially supported by the National Natural Science Foundation of China (Nos.22179064,91963119,21805140,51772157,21905141,22203046 and62174087) China Postdoctoral Science Foundation (No.2018M642287) Jiangsu Province Postdoctoral Research Grant Program (No.2018K156C) Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) the Synergetic Innovation Center for Organic Electronics and Information Displays 

主　　题：Titanium nitride Nanorod array Integrated structure Chemical adsorption Lithium-sulfur batteries 

摘      要：Lithium-sulfur(Li-S)batteries have been regarded as promising energy-storage systems,due to their high theoretical capacity and energy ***,the carbonaceous sulfur hosts suffer from weak binding force between the hosts and polysulfides,restricting the cyclic stability of sulfur ***,the presence of binder and conductive agent in the traditional electrode reduces its energy *** study demonstrates that titanium nitride(TiN)nanorod array on carbon cloth(CC)is employed as a flexible host for highly stable Li-S batteries via solvothermal synthesis-nitridation *** the one hand,the flexible integrated network composed of three-dimensional TiN nanorod array and CC significantly improves the conductivity,increases the electron transport and electrolyte penetration of *** the other hand,the 3D structure of TiN/CC and the enhanced polarity of TiN effectively strengthen the physical and chemical double adsorption for *** a result,the combination of TiN nanorod array and CC synergistic ally promotes sulfur utilization and electrochemical performances of S@TiN/CC cathode.A discharge capacity of1015.2 mAh·g^(-1)at 0.5C after 250 cycles and 604.1mAh·g^(-1)at 3C after 250 cycles is *** a larger current density of 5C,the resulting S@TiN/CC cathode maintains a high discharge capacity of 666.6 mAh·g^(-1)and the Coulombic efficiency of about 100%.