Improvement of ionic conductivity in Li^sub 3.6^Si^sub 0.6^V6sub 0.4^O^sub 4^ ceramic inorganic electrolyte by addition of LiBO2 glass for Li ion battery application

Addition of LiBO2 glass which acts as sintering aid is carried in Li3.6Si0.6V0.4O4 (LVSO) sample. The solid electrolyte is synthesized using conventional solid state sintering. LiBO2 is added with an aim to enhance the ionic conductivity of LVSO system for solid state Li+ ion battery applications. X...

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Published in:Electrochimica acta 2018-03, Vol.265, p.65
Main Authors: Gundale, Shweta S, Deshpande, AV
Format: Article
Language:English
Subjects:
Batteries
Ceramics
Conductivity
Electrolytes
Energy measurement
Glass
Infrared spectroscopy
Ion currents
Lithium borates
Lithium ions
Porosity
Rechargeable batteries
Sintering (powder metallurgy)
Solid electrolytes
Solid state
Stoichiometry
Studies
X-ray diffraction
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description Addition of LiBO2 glass which acts as sintering aid is carried in Li3.6Si0.6V0.4O4 (LVSO) sample. The solid electrolyte is synthesized using conventional solid state sintering. LiBO2 is added with an aim to enhance the ionic conductivity of LVSO system for solid state Li+ ion battery applications. X-ray diffraction is studied for all samples. Addition of LiBO2 in LVSO makes denser pellet which is revealed by SEM. Compositional analysis is done using EDS which confirms that proper stoichiometry is maintained. Conductivity of LVSO electrolyte increases with addition of lithium borate glass. It can be attributed to decrease in porosity of ceramic in glass added samples. Highest ionic conductivity of 6.4 × 10−4 S cm−1 at 423 K is observed for 2 wt% LiBO2 addition with lowest activation energy of 0.43 eV. Transport number measurement is carried out which confirms Li+ ion conduction. IR spectra are studied to know the structural groups present in the ceramics.
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subjects Batteries
Ceramics
Conductivity
Electrolytes
Energy measurement
Glass
Infrared spectroscopy
Ion currents
Lithium borates
Lithium ions
Porosity
Rechargeable batteries
Sintering (powder metallurgy)
Solid electrolytes
Solid state
Stoichiometry
Studies
X-ray diffraction
title Improvement of ionic conductivity in Li^sub 3.6^Si^sub 0.6^V6sub 0.4^O^sub 4^ ceramic inorganic electrolyte by addition of LiBO2 glass for Li ion battery application
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