Electrochemical Characteristics of Li/S Secondary Battery with (PEO)6LiBF4-Al2O3 Composite Polymer Electrolyte Prepared by Ball Milling

Sang Sik Jeong; Young Taek Lim; Byung Su Jung; Ki Won Kim

doi:10.4028/www.scientific.net/MSF.486-487.594

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HomeMaterials Science ForumMaterials Science Forum Vols. 486-487Electrochemical Characteristics of Li/S Secondary...

Electrochemical Characteristics of Li/S Secondary Battery with (PEO)₆LiBF₄-Al₂O₃ Composite Polymer Electrolyte Prepared by Ball Milling

Abstract:

The ionic conductivity and electrode-electrolyte interfacial stability have been measured for composite polymer electrolyte using nano-size alumina (Al2O3) with poly-ethylene oxide (PEO) polymer, and lithium tetrafluoroborate (LiBF4). The ionic conductivity of ball-milled PEO electrolyte was increased by Al2O3-filler-addition (BCPE) about 10 times greater than that without Al2O3 (BPE) over a range of 30°C to 80°C. The stability of resistance between electrode and electrolyte was significantly improved by the addition of Al2O3 filler during storage time. Cyclic performance of Li/BCPE/Li cell was superior to that of Li/BPE/Li cell.

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Materials Science Forum (Volumes 486-487)

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594-597

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.486-487.594

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Online since:

June 2005

Authors:

Sang Sik Jeong, Young Taek Lim, Byung Su Jung, Ki Won Kim

Keywords:

Al₂O₃ Filler, Ball Milling, Lithium/Sulfur Battery, Polymer Electrolyte, Sulfur

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