Physicochemical properties of lithium iron phosphate-carbon as lithium polymer battery cathodes

被引：22

作者：

Jin, Bo ^{[1
,2
]}

Sun, Guangping ^{[1
,2
]}

Liang, Jicai ^{[1
,2
]}

Gu, Hal-Bon ^{[3
]}

机构：

[1] Jilin Univ, Minist Educ, Key Lab Automobile Mat, Changchun 130025, Peoples R China

[2] Jilin Univ, Coll Mat Sci & Engn, Changchun 130025, Peoples R China

[3] Chonnam Natl Univ, Dept Elect Engn, Kwangju 500757, South Korea

来源：

INTERNATIONAL JOURNAL OF ENERGY RESEARCH | 2013年 / 37卷 / 06期

基金：

中国博士后科学基金;

关键词：

Lithium iron phosphate-carbon; solid polymer electrolyte; lithium polymer battery; ELECTROCHEMICAL PROPERTIES; HYDROTHERMAL SYNTHESIS; LIFEPO4/C COMPOSITE; PERFORMANCE; STATE; REACTIVITY; TRANSPORT; OLIVINES; ROUTE; CELLS;

D O I：

10.1002/er.1927

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Lithium iron phosphate-carbon (LiFePO4/multiwalled carbon nanotubes (MWCNTs)) composite cathode materials were prepared by a hydrothermal method. In this study, we used MWCNTs as conductive additive. Poly (vinylidene fluoride-co-hexafluoropropylene)-based solid polymer electrolyte (SPE) was applied. The structural and morphological performance of LiFePO4/MWCNTs cathode materials was investigated by X-ray diffraction and scanning electron microscopy/mapping. The electrochemical properties of Li/SPE/LiFePO4-MWCNTs coin-type polymer batteries were analyzed by cyclic voltammetry, ac impedance and galvanostatic charge/discharge tests. Li/SPE/LiFePO4-MWCNTs polymer battery with 5 wt % MWCNTs demonstrates the highest discharge capacity and stable cyclability at room temperature. It is indicated that LiFePO4-MWCNTs can be used as the cathode materials for lithium polymer batteries. Copyright (c) 2011 John Wiley & Sons, Ltd.

引用

页码：500 / 509

页数：10

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