Copper vanadates/polyaniline composites as anode materials for lithium-ion batteries. Issue 27 (23rd February 2015)

• Record Type: Journal Article
• Authors: Zhang, Shaoyan; Peng, Shengjie; Hu, Ruisheng; Ramakrishna, Seeram
• Is Part Of: RSC advances. Volume 5:Issue 27(2015)
• Page Start: 20692
• Page End: 20698
• Publication Date: 2015-02-23
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c5ra02457a
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Constructed by a simple dip-and-dry process, Cu5 (VO4 )2 (OH)4 ·H2 O/PANI and Cu5 V2 O10 /PANI core–shell nanocomposites exhibit excellent electrochemical performance as the anode materials in lithium-ion batteries. Abstract : In this study, a simple hydrothermal process has been carried out for the synthesis of Cu5 (VO4 )2 (OH)4 ·H2 O nanorods and Cu5 V2 O10 nanoparticles. The copper vanadates/polyaniline (CVO/PANI) core–shell composites have also been synthesized via a simple dip-and-dry method on the surface of Cu5 (VO4 )2 (OH)4 ·H2 O nanorods and Cu5 V2 O10 nanoparticles. When tested as anode materials in lithium-ion batteries, the CVO/PANI composites exhibit improved electrochemical properties of high discharge capacity, excellent cycling reversibility and rate capability, compared with the pure CVO materials. The results suggest that the conductive PANI nanolayer coating helps to preserve high capacity, maintain high electrochemical stability, and reduce charge transfer resistance during cycling performance.