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PEG对LiFePO_4/C结构与性能的影响

陶丽丽 徐云龙 黄华庆 马红彦

电源技术2009,Vol.33Issue(4):284-286,290,4.
电源技术2009,Vol.33Issue(4):284-286,290,4.

PEG对LiFePO_4/C结构与性能的影响

Effect of PEG on structure and performance of LiFePO_4/C

陶丽丽 1徐云龙 1黄华庆 1马红彦1

作者信息

  • 1. 华东理工大学,材料科学与工程学院,超细材料制备与应用教育部重点实验室,上海,200237
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摘要

Abstract

LiFePO_4/C composite was synthesized via co-precipitation method with PEG as carborr source. The pyrolysis process of precursor was monitored by TG-DSC. The structure, morphology and electrochemical properties of UFePO4/C were characterized by XRD,SEM and galvanostatic charge-discharge techniques, respectively. The influence of decomposing rate and the amount of PEG on structure, morphology and electrochemical properties was studied. The optimum experimental conditions is 6 ℃/min of heating rate and n (PEG) : n (LFP)=0.5 : 1, and the discharge capacity up to 164.7 rnAh/g is obtained at 0.1 C and the loss is only 4.75% after 30 cycles.

关键词

正极材料/LiFePO_4/C/分解速率/PEG

Key words

cathode materiel/ UFePO4/C/ decomposing rate/ PEG

分类

信息技术与安全科学

引用本文复制引用

陶丽丽,徐云龙,黄华庆,马红彦..PEG对LiFePO_4/C结构与性能的影响[J].电源技术,2009,33(4):284-286,290,4.

基金项目

上海市重点学科建设项目 ()

上海市纳米科技专项(05nm05018)资助项目 (05nm05018)

电源技术

OA北大核心CSCDCSTPCD

1002-087X

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