Cycling profile of MgAl2O4-incorporated composite electrolytes composed of PEO and LiPF6 for lithium polymer batteries

被引：91

作者：

Angulakshmi, N. ^{[1
]}

Nahm, K. S. ^{[1
]}

Nair, Jijeesh R. ^{[2
]}

Gerbaldi, C. ^{[2
]}

Bongiovanni, R. ^{[2
]}

Penazzi, N. ^{[2
]}

Stephan, A. Manuel ^{[3
]}

机构：

[1] Chonbuk Natl Univ, Sch Chem Engn, Jeonju 561756, South Korea

[2] Politecn Torino, Inst Chem, Dept Appl Sci & Technol DISAT, I-10129 Turin, Italy

[3] Cent Electrochem Res Inst CSIR CECRI, Electrochem Power Syst Div, Karaikkudi 630006, Tamil Nadu, India

来源：

ELECTROCHIMICA ACTA | 2013年 / 90卷

关键词：

Lithium-polymer batteries; Compatibility; Lewis-acid base theory; Composite polymer electrolytes; Ionic conductivity; Charge discharge studies; INTERFACIAL PROPERTIES; POLY(ETHYLENE OXIDE); SOLID ELECTROLYTES; IONIC-CONDUCTIVITY; SOLVENT-FREE; NANOCOMPOSITES; PERFORMANCES; STABILITY; POWDERS; SIO2;

D O I：

10.1016/j.electacta.2012.12.003

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Magnesium aluminate (MgAl2O4)-incorporated poly(ethylene oxide) (PEO)-lithium hexafluorophosphate (LiPF6) based composite polymer electrolyte (CPE) membranes were prepared by a hot press for the first time. The membranes were subjected to X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric (TG), differential scanning calorimetry (DSC), tensile, impedance spectroscopy, compatibility and transport number studies. The incorporation of MgAl2O4 greatly enhanced the ionic conductivity, compatibility and mechanical integrity of the polymeric membrane. Finally, an all solid state lithium cell composed of Li/CPE/LiFePO4 was assembled and its cycling profile was analyzed at 70 degrees C. The cells delivered a discharge capacity of 127 mAh g(-1) at 1 C-rate with very good capacity retention up to 100 cycles which is found to be better than those reported earlier. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：179 / 185

页数：7

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