Polydiphenylamine/carbon nanotube composites for applications in rechargeable lithium batteries

被引：24

作者：

Baibarac, Mihaela ^{[1
]}

Baltog, Ioan ^{[1
]}

Lefrant, Serge ^{[2
]}

Gomez-Romero, Pedro ^{[3
]}

机构：

[1] Natl Inst Mat Phys, Lab Opt Proc Nanostruct Mat, R-77125 Bucharest, Romania

[2] Inst Mat Jean Rouxel, F-44322 Nantes, France

[3] ICN, CSIC, CIN2, Bellaterra 08193, Spain

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2011年 / 176卷 / 02期

关键词：

Carbon nanotubes; Composites; Raman; Lithium batteries; WALLED CARBON NANOTUBES; CYCLIC VOLTAMMETRY; POLYANILINE; DIPHENYLAMINE; POLYMERIZATION; ELECTROLYTE; PERFORMANCE; OXIDATION; GRAPHITE; POLYMERS;

D O I：

10.1016/j.mseb.2010.10.008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Polydiphenylamine/single walled carbon nanotube (PDPA/SWNT) composites were synthesized electrochemically aiming at their application as active electrode materials for rechargeable lithium batteries. The electrochemical polymerization of diphenylamine (DPA) on a SWNT film immersed in a 1 M HCl solution was studied by cyclic voltammetry. Comparing cyclic voltammograms recorded on a blank Pt electrode with those obtained for a SWNT film deposited on Pt electrode one observes in the latter case a decrease of the DPA reduction potential. To elucidate electrochemical polymerization mechanism, photoluminescence studies on DPA/SWNT and PDPA/SWNT systems were carried out. Additional information concerning the functionalization process of SWNT with PDPA was obtained by Raman and IR spectroscopy. Using the PDPA/SWNT composite as active material for the positive electrode of a rechargeable lithium cell (LiPF(6) electrolyte), the charge-discharge tests show a specific discharge capacity of ca. 245 mA h g(-1), much higher than the 35 mA h g(-1) for pure PDPA. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：110 / 120

页数：11

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