Preparation and characterization of (PVP+V2O5) cathode for battery applications

被引：37

作者：

Reddy, CVS ^{[1
]}

Jin, AP ^{[1
]}

Han, X ^{[1
]}

Zhu, QY ^{[1
]}

Mai, LQ ^{[1
]}

Chen, W ^{[1
]}

机构：

[1] Wuhan Univ Technol, Inst Mat Sci & Engn, Wuhan 430070, Peoples R China

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2006年 / 8卷 / 02期

关键词：

V2O5; xerogel; PVP; modification; reversibility;

D O I：

10.1016/j.elecom.2005.11.025

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The cathode films of V2O5 xerogel modified with polyvinyl pyrrolidone (PVP) were prepared using sol-gel method. Investigations were conducted by X-ray diffractometry, Fourier transformation infrared spectroscopy, X-ray photoelectron spectroscopy and cyclic voltammetry. The results show that the H atoms in PVP are hydrogen-bonded with the O atoms of the V=O bonds of the V2O5 xerogel, which effectively shielded against electrostatic interactions between the V2O5 interlayer and Li+ ions when the V2O5 xerogel is modified by the intercalation of PVP. The reversibility of insertion/extraction of Li+ ions is greatly improved by modification of the V2O5 xerogel with PVP. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：279 / 283

页数：5

共 31 条

[1] Electrochemical conditioning of vanadium(V) pentoxide xerogel films
Anaissi, FJ
Demets, GJF
Toma, HE
[J]. ELECTROCHEMISTRY COMMUNICATIONS, 1999, 1 (08) : 332 - 335
[2] Armand M. B., 1979, Fast Ion Transport in Solids. Electrodes and Electrolytes, P131
[3] ARMAND MB, 1988, INT C SOL EL U ST AN
[4] CHEN W, 1998, THESIS WUHAN U TECHN, P6
[5] On the ability of four flavonoids, baicilein, luteolin, naringenin, and quercetin, to suppress the fenton reaction of the iron-ATP complex
Cheng, IF
Breen, K
[J]. BIOMETALS, 2000, 13 (01) : 77 - 83
[6] CHUAN GYD, 1996, MAT RES B, V31, P335
[7] A 400 mAh/g aerogel-like V2O5 cathode for rechargeable lithium batteries
Coustier, F
Passerini, S
Smyrl, WH
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1998, 145 (05) : L73 - L74
[8] COMPLEXES OF ALKALI-METAL IONS WITH POLY(ETHYLENE OXIDE)
FENTON, DE
PARKER, JM
WRIGHT, PV
[J]. POLYMER, 1973, 14 (11) : 589 - 589
[9] Poly(pyrrole) and poly(thiophene)/vanadium oxide interleaved nanocomposites: positive electrodes for lithium batteries
Goward, GR
Leroux, F
Nazar, LF
[J]. ELECTROCHIMICA ACTA, 1998, 43 (10-11) : 1307 - 1313
[10] Synthesis and properties of polypyrrole vanadium oxide hybrid aerogels
Harreld, J
Wong, HP
Dave, BC
Dunn, B
Nazar, LF
[J]. JOURNAL OF NON-CRYSTALLINE SOLIDS, 1998, 225 (01) : 319 - 324

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