Improvement of Electrochemical Performance of SnO2 Anode by Polypyrrole with Different Morphologies

被引：2

作者：

Peng Peng ^{[1
]}

Wen Zhaoyin ^{[1
]}

Liu Yu ^{[1
]}

Yang Jianhua ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, CAS Key Lab Mat Energy Convers, Shanghai 200050, Peoples R China

来源：

CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 2014年 / 35卷 / 05期

基金：

中国国家自然科学基金;

关键词：

SnO2/polypyrrole anode; Tubular polypyrrole; Globular polypyrrole; Lithium ion battery; CARBON-COATED SILICON; LITHIUM STORAGE; ION; COMPOSITE; NANOCOMPOSITES; SPECTROSCOPY;

D O I：

10.7503/cjcu20131034

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

SnO2/polypyrrole composites as anode material of lithium ion batteries were in-situ prepared by an one-step precipitation in the suspension of the polypyrrole synthesized in advance. It is found that the morphology of polypyrrole has an obvious effect on the electrochemical performance of SnO2/polypyrrole composite anode. The granular polypyrrole (G-PPy) displayed advantages over the tubular polypyrrole. The composite containing G-PPy reached the first coulombic efficiency of 77. 6% and remained a reversible specific capacity higher than 600 mA . h/g after 60 cycles. The good flexibility and adhesion of polypyrrole could make a contribution to the enhancement of the electrochemical performance of SnO2 based anode.

引用

页码：1051 / 1056

页数：6

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