Facile synthesis of Ag/AgVO₃ hybrid nanorods with enhanced electrochemical performance as cathode material for lithium batteries

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• 作者：Shuquan Liang ; Jiang Zhou ; Anqiang Pan ; ^{pananqiang@gmail.com} ; Xuelin Zhang ; Yan Tang ; Xiaoping Tan ; Tao Chen ; Ruomei Wu
• 关键词：Silver/silver vanadium oxide hybrid ; Silver nanoparticles ; Nanorods ; Cathode ; Batteries
• 刊名：Journal of Power Sources
• 出版年：2013
• 出版时间：15 April, 2013
• 年：2013
• 卷：228
• 期：Complete
• 页码：178-184
• 全文大小：1283 K

文摘

Ag/¦Â-AgVO₃ hybrid nanorods have been successfully prepared by a facile one-step solid-state approach and their electrochemical performance has been evaluated as cathode materials for lithium batteries (LBs). The effects of calcinations temperatures to the morphologies of the material and the content of Ag in the hybrid have been investigated. The Ag/AgVO₃ hybrid synthesized at 420?¡ãC shows well-separated nanorods anchored with Ag nanoparticles. The existence of Ag nanoparticles has been demonstrated to improve the conductivity of the electrode. As a cathode material for lithium batteries, it exhibits high specific capacity, good rate capability and improved cycle stability. Initial specific discharge capacities of 242, 228, 203, 202, 198?mA?h?g^?1 can be achieved at the current densities of 50, 100, 200, 400, 800?mA?g^?1, respectively. The superior performance is attributed to the combined effect of the electron conductivity improvement by the Ag nanoparticles and the well-separated ¦Â-AgVO₃ nanorod structures. The results demonstrate the advantages of the Ag/AgVO₃ hybrid for primary lithium batteries, and the possible application in rechargeable lithium batteries.