Conductivity and transference number of poly(ethylene oxide)/poly(vinylidene fluoride) blend plasticized polymer electrolytes

Author

Kim, Jong-Uk ; Sung, Chang-Ho ; Moon, Seong-In ; Gu, Hal-Bon

Author_Institution

Dept. of Electr. Eng., Chonnam Nat. Univ., Kwangju, South Korea

Volume

2

fYear

1997

fDate

25 -30 May 1997

Firstpage

646

Abstract

The purpose of this study is to research and develop solid polymer electrolyte (SPE) for lithium polymer battery. We investigated conductivity, electrochemical properties and impedance spectroscopy of poly(ethylene oxide)[PEO]/poly(vinylidene fluoride) [PVDF] blend electrolytes and charge/discharge cycling of LiCoO₂/SPE/Li cell. By adding PVDF and plasticizer to PEO-LiClO₄ electrolyte, its conductivity was higher than that of PEO-LiClO₄ electrolyte. Also PEO₄PVDF₄LiClO₄PC₅ ECD remains stable up to 4.4 V vs Li/Li⁺. The discharge capacity of the LiCoO₂ composite cathode was 92 mAh/g based on LiCoO ₂

Keywords

cathodes; electrical conductivity; lithium; lithium compounds; polymer blends; secondary cells; solid electrolytes; 4.4 V; charge/discharge cycling; composite cathode; conductivity; discharge capacity; electrochemical properties; impedance spectroscopy; lithium polymer battery; plasticized polymer electrolytes; poly(ethylene oxide)/poly(vinylidene fluoride) blend; solid polymer electrolyte; transference number; Batteries; Cathodes; Conductive films; Conductivity; Electrodes; Impedance measurement; Lithium; Polymer films; Slurries; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 1997., Proceedings of the 5th International Conference on

Conference_Location

Seoul

Print_ISBN

0-7803-2651-2

Type

conf

DOI

10.1109/ICPADM.1997.616518

Filename

616518