Effects of Al2O3 nanofiller and EC plasticizer on the ionic conductivity enhancement of solid PEO-LiCF3SO3 solid polymer electrolyte

被引：163

作者：

Johan, Mohd Rafie ^{[1
]}

Shy, Oon Hooi ^{[1
]}

Ibrahim, Suriani ^{[1
]}

Yassin, Siti Mariah Mohd ^{[1
]}

Hui, Tay Yin ^{[1
]}

机构：

[1] Univ Malaya, Dept Mech Engn, Adv Mat Res Lab, Kuala Lumpur 50603, Malaysia

来源：

SOLID STATE IONICS | 2011年 / 196卷 / 01期

关键词：

Nanocomposite polymer electrolyte; Solution casting; Ceramic filler; Ionic conductivity; Activation energy; ELECTROCHEMICAL CHARACTERISTICS; ETHYLENE CARBONATE; LITHIUM TRIFLATE; TRANSPORT; FILLER; SYSTEM; SALT; (PEO)(9)LITF; SPECTROSCOPY; IMPEDANCE;

D O I：

10.1016/j.ssi.2011.06.001

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：

A solid polymer electrolyte (SPE) is synthesized by solution casting technique. The SPE uses poly(ethylene oxide) PEO as a host matrix doped with lithium triflate (LiCF3SO3), ethylene carbonate (EC) as plasticizer and nano alumina (Al2O3) as filler. The polymer electrolytes are characterized by Impedance Spectroscopy (IS) to determine the composition of the additive which gives the highest conductivity for each system. At room temperature, the highest conductivity is obtained for the composition PEO-LiCF3SO3-EC-15%Al2O3 with a value of 5.0710(-4) S/cm. The ionic conductivity of the polymer electrolytes increases with temperature and obeys the Arrhenius law. X-ray diffraction (XRD) and differential scanning calorimetry (DSC) studies indicate that the conductivity increase is due to an increase in amorphous content which enhances the segmental flexibility of polymeric chains and the disordered structure of the electrolyte. Fourier transform infrared spectroscopy (FTIR) spectra show the occurrence of complexation and interaction among the components. Scanning electron microscopy (SEM) images show the changes morphology of solid polymer electrolyte. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：41 / 47

页数：7

共 41 条

[31] Electrochemical characteristics of phase-separated polymer electrolyte based on poly(vinylidene and ethylene fluoride-co-hexafluoropropane) carbonate [J].

Song, JM ;

Kang, HR ;

Kim, SW ;

Lee, WM ;

Kim, HT .

ELECTROCHIMICA ACTA, 2003, 48 (10) :1339-1346

[32]

Sukeshini A.M., 1998, SOLID STATE IONICS, V179, P113

[33] The effects of ceramic fillers on the PMMA-based polymer electrolyte systems [J].

Tan, C. G. ;

Siew, W. O. ;

Pang, W. L. ;

Osman, Z. ;

Chew, K. W. .

IONICS, 2007, 13 (05) :361-364

[34] The concentration behavior of lithium triflate at the surface of polymer electrolyte materials [J].

Teeters, D ;

Neuman, RG ;

Tate, BD .

SOLID STATE IONICS, 1996, 85 (1-4) :239-245

[35] Fumed silica-based composite polymer electrolytes: synthesis, rheology, and electrochemistry [J].

Walls, HJ ;

Zhou, J ;

Yerian, JA ;

Fedkiw, PS ;

Khan, SA ;

Stowe, MK ;

Baker, GL .

JOURNAL OF POWER SOURCES, 2000, 89 (02) :156-162

[36] Conductivity studies of plasticized PEO-Lithium chlorate-FIC filler composite polymer electrolytes [J].

Wang, YJ ;

Pan, Y ;

Wang, L ;

Pang, MJ ;

Chen, LS .

MATERIALS LETTERS, 2005, 59 (24-25) :3021-3026

[37] Infrared spectroscopic study of the interaction between lithium salt LiClO4 and the plasticizer ethylene carbonate in the polyacrylonitrile-based electrolyte [J].

Wang, ZX ;

Huang, BY ;

Huang, H ;

Chen, LQ ;

Xue, RJ ;

Wang, FS .

SOLID STATE IONICS, 1996, 85 (1-4) :143-148

[38] MODIFICATIONS OF CRYSTALLINE-STRUCTURE OF PEO POLYMER ELECTROLYTES WITH CERAMIC ADDITIVES [J].

WIECZOREK, W ;

SUCH, K ;

WYCISLIK, H ;

PLOCHARSKI, J .

SOLID STATE IONICS, 1989, 36 (3-4) :255-257

[39]

WIECZOREK W, 1996, SOLID STATE IONICS, V85, P76

[40] Composite polymer electrolyte doped with mesoporous silica SBA-15 for lithium polymer battery [J].

Xi, JY ;

Qiu, XP ;

Ma, XM ;

Cui, MZ ;

Yang, J ;

Tang, XZ ;

Zhu, WT ;

Chen, LQ .

SOLID STATE IONICS, 2005, 176 (13-14) :1249-1260

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