Synthesis and characterization of Carbon Nano Fiber/LiFePO4 composites for Li-ion batteries

被引：167

作者：

Bhuvaneswari, M. S. ^{[1
]}

Bramnik, N. N. ^{[1
]}

Ensling, D. ^{[1
]}

Ehrenberg, H. ^{[1
,2
]}

Jaegermann, W. ^{[1
]}

机构：

[1] Tech Univ Darmstadt, Inst Mat Sci, D-64287 Darmstadt, Germany

[2] IFW Dresden, Inst Complex Mat, D-01069 Dresden, Germany

来源：

JOURNAL OF POWER SOURCES | 2008年 / 180卷 / 01期

关键词：

Carbon Nano Fiber; LiFePO4; Raman analysis; X-ray photo electron spectroscopy; electrochemical analysis;

D O I：

10.1016/j.jpowsour.2008.01.090

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Carbon Nano Fibers (CNFs) coated with LiFePO4 Particles have been prepared by a non-aqueous sol-gel technique. The functionalization of the CNFs by HNO3 acid treatment has been confirmed by Raman and XPS analyses. The samples pure LiFePO4 and LiFePO4-CNF have been characterized by XRD, SEM, RAMAN, XPS and electrochemical analysis. The LiFePO4-CNF sample shows better electrochemical performance compared to as-prepared LiFePO4 center dot LiFePO4-CNF (10 wt.%) delivers a higher specific capacity (similar to 140 mAh g(-1)) than LiFePO4 with carbon black (25 wt.%) added after synthesis (similar to 120 mAh g(-1)) at 0.1C. (C) 2008 Elsevier B.V All rights reserved.

引用

页码：553 / 560

页数：8

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