Articles
  • Effect of SiO2/B2O3 ratio on Li ion conductivity of a Li2O-B2O3-SiO2 glass electrolyte
  • Young Han Kim, Mi Young Yoon, Eun Jung Lee and Hae Jin Hwang*
  • Division of Materials Science and Engineering, Inha University, Incheon 402-751, Kore
Abstract
A lithium ion conducting borosilicate glass was fabricated by a conventional melt quenching technique from a mixture of Li2CO3, B2O3 and SiO2 powders. The Li ion conductivity of the lithium borosilicate glasses was evaluated in terms of the SiO2/ B2O3 ratio. In the Li2O-B2O3-SiO2 ternary glass, the glass forming region decreases with an increasing Li2O content. At the same Li2O, the crystallization tendency of the glass samples increases with the SiO2/B2O3 ratio, resulting in a reduced glass forming region in the Li2O-B2O3-SiO2 ternary glass. The electrical conductivity moderately depends on the SiO2/B2O3 ratio in the Li2O-B2O3-SiO2 ternary glass. The conductivity of the glasses slightly increases with the SiO2/B2O3 ratio. The observed phenomenon can be explained by the modification of the glass structure as a function of the SiO2 content.

Keywords: Solid electrolytes, Li ion conductivity, Solid state batteries, Lithium boroslicate glasses.

This Article

  • 2012; 13(S1): 37-41

    Published on Aug 31, 2012

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