NDLI: Synthesis and characterization of self-bridged silver vanadium oxide/CNTs composite and its enhanced lithium storage performance

Content Provider	Royal Society of Chemistry (RSC)
Author	Yang, Wensheng Liu, Haimei Liang, Liying
Copyright Year	2013
Abstract	The improvement of the electrochemical properties of electrode materials with large capacity and good capacity retention is becoming an important task in the field of lithium ion batteries (LIBs). We designed a function-oriented hybrid material consisting of silver vanadium oxide (β-AgVO3) nanowires modified with uniform Ag nanoparticles and multi-walled carbon nanotubes (CNTs) as a high-performance cathode material for LIBs. The Ag nanoparticles which precipitated automatically in the synthetic process act as a bridge between the β-AgVO3 nanowires and CNTs, creating a self-bridged network structure. The Ag particles at the junction of the nanowires and CNTs facilitate electron transport from the CNTs to the nanowires, and thereby improve the electrical conductivity of the β-AgVO3 nanowires and the composite. Moreover, the self-bridged network is hierarchically porous with a high surface area. When used as a cathode material, this composite electrode reveals high discharge capacities, excellent rate capability, and good cycling stability. The improved performance of the composite arises from its unique nanosized β-AgVO3 nanowires with short diffusion pathway for lithium ions, efficient electron collection and transfer in the presence of Ag nanoparticles, together with excellent electrical conductivity of CNTs.
Starting Page	1026
Ending Page	1033
Page Count	8
File Format	HTM / HTML PDF
ISSN	20403364
Volume Number	5
Issue Number	3
Journal	Nanoscale
DOI	10.1039/c2nr33091a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Carbon nanotube Electrical resistivity and conductivity Electrode Cathode Vanadium Electrochemistry Ion Lithium Diffusion
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology

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