title: Polypyrrole-encapsulated vanadium pentoxide nanowires on a conductive substrate for electrode in aqueous rechargeable lithium battery.
abstract: Precursors of ammonium vanadium bronze (NH4V4O10) nanowires assembled on a conductive substrate were prepared by a hydrothermal method. After calcination at 360°C, the NH4V4O10 precursor transformed to vanadium pentoxide (V2O5) nanowires, which presented a high initial capacity of 135.0mA h g(-1) at a current density of 50mA g(-1) in 5M LiNO3 aqueous solution; while the specific capacity faded quickly over 50 cycles. By coating the surface of V2O5 nanowires with water-insoluble polypyrrole (PPy), the formed nanocomposite electrode exhibited a specific discharge capacity of 89.9mA h g(-1) at 50mA g(-1) (after 100 cycles). A V2O5@PPy //LiMn2O4 rechargeable lithium battery exhibited an initial discharge capacity of 95.2mA h g(-1); and after 100 cycles, a specific discharge capacity of 81.5mA h g(-1) could retain at 100mA g(-1).
authors.affiliation: Key Lab of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, College of Material Science and Engineering, Wuhan Textile University, Wuhan, PR China.
authors.forename: Chaowei
authors.initials: C
authors.lastname: Liang
authors.affiliation: Key Lab of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, College of Material Science and Engineering, Wuhan Textile University, Wuhan, PR China. Electronic address: csufangdong@gmail.com.
authors.forename: Dong
authors.initials: D
authors.lastname: Fang
authors.affiliation: Key Lab of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, College of Material Science and Engineering, Wuhan Textile University, Wuhan, PR China.
authors.forename: Yunhe
authors.initials: Y
authors.lastname: Cao
authors.affiliation: State Key Laboratory of Porous Metal Material, Northwest Institute for Non-ferrous Metal Research, Xi'an, PR China.
authors.forename: Guangzhong
authors.initials: G
authors.lastname: Li
authors.affiliation: Department of Chemistry and Physics and Southeastern North Carolina Regional Microanalytical and Imaging Consortium, Fayetteville State University, Fayetteville, NC 28301, USA.
authors.forename: Zhiping
authors.initials: Z
authors.lastname: Luo
authors.affiliation: Department of medical science, Zhengzhou Shuqing Medical College, Zhengzhou, PR China.
authors.forename: Qunhua
authors.initials: Q
authors.lastname: Zhou
authors.affiliation: Key Lab of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, College of Material Science and Engineering, Wuhan Textile University, Wuhan, PR China.
authors.forename: Chuanxi
authors.initials: C
authors.lastname: Xiong
authors.affiliation: Key Lab of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, College of Material Science and Engineering, Wuhan Textile University, Wuhan, PR China. Electronic address: Weilin_xu@hotmail.com.
authors.forename: Weilin
authors.initials: W
authors.lastname: Xu
mesh_terms: D002214:Capsules; D011211:Electric Power Supplies; D004566:Electrodes; D008094:Lithium / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D053770:Nanowires / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D011758:Pyrroles / Q000737:chemistry*; D017968:Vanadium Compounds / Q000737:chemistry*; D014867:Water / Q000737:chemistry*
chemical_list: D002214:Capsules; D011108:Polymers; D011758:Pyrroles; D017968:Vanadium Compounds; D014867:Water; C067635:polypyrrole; D008094:Lithium; C066075:vanadium pentoxide
keywords: Aqueous rechargeable lithium batteries; Nanowire; Polypyrrole; Vanadium pentoxide