Title :
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
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;
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
DOI :
10.1109/ICPADM.1997.616518
