A Study on the Electrochemical Properties of PEO-Carbon Composite Polymer Electrolytes for Lithium/Sulfur Battery

Young Jin Choi; Sung Hyun Kim; Sang Choul Park; Dong Hyun Shin; Dong Hun Kim; Ki Won Kim

doi:10.4028/www.scientific.net/MSF.544-545.945

Paper Titles

Two Types of Phase Separation and Crystal Nucleation-Growth Mechanisms for Machinable Glass Ceramic
p.929

Preparation of Si-B-C System Powder Using Silicon, Boron, and Boron Carbide
p.933

Dependence of the Dielectric Properties of Pt/ZrO₂/Si Capacitors Prepared by RF-Magnetron Sputtering on the Oxygen Partial Pressure and the Annealing Temperature
p.937

Fabrication of n-HA/CS Porous Scaffold Carrying Ampicillin-Loaded Microspheres
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A Study on the Electrochemical Properties of PEO-Carbon Composite Polymer Electrolytes for Lithium/Sulfur Battery
p.945

Characteristics of Fluorine-Doped Tin Oxide Thin Films on Poly Ethylene Terephthalate (PET) Substrate
p.949

Cu/GDC Cermet Anodes by Sintering via Surface Modification with MgO Sol
p.953

Cycling Performance of LiFePO₄ as the Cathode Materials for Lithium Polymer Batteries
p.957

Densification and Dielectric Properties of Glass/Ceramic Composites Sintered with Various Borosilicate Glass
p.961

HomeMaterials Science ForumMaterials Science Forum Vols. 544-545A Study on the Electrochemical Properties of...

A Study on the Electrochemical Properties of PEO-Carbon Composite Polymer Electrolytes for Lithium/Sulfur Battery

Abstract:

In this study, we investigated ionic conductivities of the electrolytes and cycle performances of Li/S cells using the electrolyte. (PEO)10LiCF3SO3 composite polymer electrolyte(CPE) containing carbon powders and Brij dispersant was prepared by ball milling for 12hr. The 5wt% carbon powders having high surface area (~ 80 m2/g) was added into the (PEO)10LiCF3SO3 electrolyte. To get a well-dispersed structure, Brij dispersant was also added into the (PEO)10LiCF3SO3-5wt%Carbon electrolyte. Li/CPEs/50wt%S cells showed initial discharge capacities of between 1,250 and 1,413 mAh/g-sulfur with current density of 100 mA/g-sulfur at 80 °C. These results led us to conclude that the dispersants added into the CPE improved the initial discharge capacities and cycle performances.