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Experimental and Modelling Study of Ionic Conductivity in Lithium Phosphate and Silicate Glasses

Hogan, Matteo P (2014) Experimental and Modelling Study of Ionic Conductivity in Lithium Phosphate and Silicate Glasses. Master of Science by Research (MScRes) thesis, University of Kent,. (Access to this publication is currently restricted. You may be able to access a copy if URLs are provided) (KAR id:47954)

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Language: English

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Abstract

This study is an attempt to investigate ionic conductivity and structural components of

batteries.

synthesised using conventional melt quenching and were characterised using various

(5mol%) addition of Nb 2 O 5 to the Li 3 Fe 2 (PO 4 ) 3 glass was necessary for the formation of a

The glasses conductivity was then measured using impedance spectroscopy over a

observed that an increasing temperature corresponded to an increasing conductivity, as

expected from the Arrhenious equation: ? = ? 0 exp (? k a T ). Conductivity values were

compared to published values and the first reported conductivity values for 37.5Li 2 O-

and compared to published data.

37.5P 2 O 5 were made. These models were then analysed and compared to experimental

model structures compare well to experimental data (X-ray and Neutron diffraction).

overestimation of conductivity compared to experimental data, due to limitations of the

metaphosphate glasses have a similar conductivity as observed experimentally.

improved chemical durability, its conductivity was reduced. In addition to this the

lower than its crystalline counterpart which will be a disadvantage for its use as a solid

electrolyte.

Item Type: Thesis (Master of Science by Research (MScRes))
Thesis advisor: Mountjoy, Gavin
Uncontrolled keywords: Experimental Modelling Ionic Conductivity Lithium Phosphate Silicate Glasses
Subjects: Q Science > QC Physics
Divisions: Faculties > Sciences > School of Physical Sciences
Depositing User: Users 1 not found.
Date Deposited: 13 Apr 2015 10:01 UTC
Last Modified: 27 Jan 2020 04:06 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/47954 (The current URI for this page, for reference purposes)
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