Three-Dimensional Hierarchical Reduced Graphene Oxide/Tellurium   Nanowires: A High-Performance Freestanding Cathode for Li-Te Batteries

doi:10.1021/acsnano.6b04622

CORC > 北京大学 > 化学与分子工程学院

	Three-Dimensional Hierarchical Reduced Graphene Oxide/Tellurium Nanowires: A High-Performance Freestanding Cathode for Li-Te Batteries
	He, Jiarui ; Chen, Yuanfu ; Lv, Weiqiang ; Wen, Kechun ; Wang, Zegao ; Zhang, Wanli ; Li, Yanrong ; Qin, Wu ; He, Weidong
刊名	ACS NANO
	2016
关键词	lithium batteries three-dimensional aerogel free-standing cathode reduced graphene oxide tellurium LITHIUM-ION BATTERIES SUPERIOR-CAPABILITY ANODE SULFUR BATTERIES CARBON CAPACITY STORAGE OXIDE
DOI	10.1021/acsnano.6b04622
英文摘要	Three-dimensional aerogel with ultrathin tellurium nanowires (TeNWs) wrapped homogeneously by reduced graphene oxide (rGO) is realized via a facile hydrothermal method. Featured with high conductivity and large flexibility, the rGO constructs a conductive three-dimensional (3D) backbone with rich porosity and leads to a free-standing, binder-free cathode for lithium tellurium (Li-Te) batteries with excellent electrochemical performances. The cathode shows a high initial capacity of 2611 mAh cm(-3) at 0.2 C, a high retention of 88% after 200 cycles, and a high rate capacity of 1083 mAh cm(-3) at 10 C. In particular, the 313 aerogel cathode delivers a capacity of 1685 mAh cm(-3) at 1 C after 500 cycles, showing pronounced long-cycle performance at high current density. The performances are attributed to the well-defined flexible 3D architecture with high porosity and conductivity network, which offers highly efficient channels for electron transfer and ionic diffusion while compromising volume expansion of Te in charge/discharge. Owing to such advantageous properties, the reported 3D rGO/tellurium nanowire (3DGT) aerogel presents promising application potentials as a high-performance cathode for Li-Te batteries.; SCI(E); EI; PubMed; ARTICLE; yfchen@uestc.edu.cn; weidong.he@uestc.edu.cn; 9; 8837-8842; 10
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/493137]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	He, Jiarui,Chen, Yuanfu,Lv, Weiqiang,et al. Three-Dimensional Hierarchical Reduced Graphene Oxide/Tellurium Nanowires: A High-Performance Freestanding Cathode for Li-Te Batteries[J]. ACS NANO,2016.
APA	He, Jiarui.,Chen, Yuanfu.,Lv, Weiqiang.,Wen, Kechun.,Wang, Zegao.,...&He, Weidong.(2016).Three-Dimensional Hierarchical Reduced Graphene Oxide/Tellurium Nanowires: A High-Performance Freestanding Cathode for Li-Te Batteries.ACS NANO.
MLA	He, Jiarui,et al."Three-Dimensional Hierarchical Reduced Graphene Oxide/Tellurium Nanowires: A High-Performance Freestanding Cathode for Li-Te Batteries".ACS NANO (2016).