Depositing natural stibnite on 3D TiO_(2) nanotube array networks as high-performance thin-film anode for lithium-ion batteries  

作　　者：Juan Yu Bi-Cheng Meng Le-Jie Wang Qi Wang Wen-Long Huang Xu-Yang Wang Zhao Fang 

机构地区：[1]School of Metallurgical Engineering,Xi’an University of Architecture and Technology,Xi’an 710311,China [2]Shaanxi Province Metallurgical Engineering and Technology Research Centre,Xi’an 710055,China [3]School of Metallurgy and Environment,Central South University,Changsha 410083,China

出　　处：《Rare Metals》2021年第11期3215-3221,共7页稀有金属（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Nos.51974222 and 51974191);the Natural Science Basic Research Plan in Shaanxi Province(No.2019JQ-764);the Project from Shaanxi Provincial Education Department,China(No.18JK0474)。

摘　　要：Three-dimensional(3D) thin-film electrodes are promising solution to the volume change of active materials in lithium-ion batteries.As a conductive current collector,the 3D TiO_(2) nanotube array networks(TNAs) have a one-dimensional stable electronic conductive path and increase the adhesion between the current collector and raw material,thereby improving the cycle stability of active materials.In this study,a novel 3D-TNAs@Sb_(2)S_(3) anode was fabricated by directly depositing natural stibnite onto3D TNAs.The adhesion of Sb_(2)S_(3) particles to the substrate was enhanced due to the large surface area provided by 3D-TNAs.Moreover,the porous layered structure composed of Sb_(2)S_(3) nanoparticles relieved the stress generated during lithiation and adapted to the volume change of Sb_(2)S_(3) during cycling.Therefore,the resulting composite anode exhibits high cycle and rate performance,reaching0.36 mAh·cm^(-2) after 80 cycles at the galvanostatic rate of1 mA·cm^(-2),with high coulombic efficiency of 98%.

关 键 词：TiO_(2)nanotube array Natural stibnite Lithiumion batteries ANODE 

分 类 号：TM912[电气工程—电力电子与电力传动] TB383.2[一般工业技术—材料科学与工程]