【摘 要】
：
Three-dimensional(3D)thin-film electrodes are promising solution to the volume change of active mate-rials in lithium-ion batteries.As a conductive current col-lector,the 3D TiO2 nanotube array networks(TNAs)have a one-dimensional stable electronic conduc
【机 构】
：
School of Metallurgical Engineering,Xi’an University of Architecture and Technology,Xi’an 710311,Chi
论文部分内容阅读
Three-dimensional(3D)thin-film electrodes are promising solution to the volume change of active mate-rials in lithium-ion batteries.As a conductive current col-lector,the 3D TiO2 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@Sb2S3 anode was fabricated by directly depositing natural stibnite onto 3D TNAs.The adhesion of Sb2S3 particles to the sub-strate was enhanced due to the large surface area provided by 3D-TNAs.Moreover,the porous layered structure composed of Sb2S3 nanoparticles relieved the stress gen-erated during lithiation and adapted to the volume change of Sb2S3 during cycling.Therefore,the resulting composite anode exhibits high cycle and rate performance,reaching 0.36 mAh·cm-2 after 80 cycles at the galvanostatic rate of 1 mA·cm-2,with high coulombic efficiency of 98％.
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