Ionic conductivity study of doped LaF3 as fluoride-ion conductors in fluoride-ion batteries

Lithium Ion Battery (LIB), a cation ion battery, is readily available in the market for some time and Fluoride Ion Battery (FIB), an anion battery, will be developed to replace LIB in near future. This is mainly due to three reasons; safety (formation of dendrites during high ra...

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Main Author: Tan, Bernard Jui Chin.
Other Authors: Srinivasan Madhavi
Format: Final Year Project (FYP)
Language:English
Published: 2012
Subjects:
Online Access:http://hdl.handle.net/10356/50213
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author Tan, Bernard Jui Chin.
author2 Srinivasan Madhavi
author_facet Srinivasan Madhavi
Tan, Bernard Jui Chin.
author_sort Tan, Bernard Jui Chin.
collection NTU
description Lithium Ion Battery (LIB), a cation ion battery, is readily available in the market for some time and Fluoride Ion Battery (FIB), an anion battery, will be developed to replace LIB in near future. This is mainly due to three reasons; safety (formation of dendrites during high rate charging and discharging for LIB), higher energy density (energy stored per unit volume in FIB) and cost (high cost cobalt-based cathode). Having fluoride ions instead of lithium ions intercalating within FIB electrochemical cell can minimize safety issues and also increasing the stability within the cell. Nano-sized Lanthanum (III) fluoride (LaF3) is being used as a material for solid electrolytes as it has high ionic conductivity due to its tysonite-structure. This material has the potential to deliver a better performance within the cell. Adding on to that, metal elements (Calcium (Ca), Strontium (Sr) and Barium (Ba)) are used to dope into LaF3, creating defects within lattice to further enhance the performance. Solid electrolyte LaF3 material will be synthesized, characterized and then evaluating their ionic conductivity using a Swagelok cell and compared. A relationship between different element species doping, concentration and temperature effect of nano-sized LaF3 host materials with ionic conductivity are determined.
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spelling ntu-10356/502132023-03-04T15:42:40Z Ionic conductivity study of doped LaF3 as fluoride-ion conductors in fluoride-ion batteries Tan, Bernard Jui Chin. Srinivasan Madhavi School of Materials Science and Engineering DRNTU::Library and information science Lithium Ion Battery (LIB), a cation ion battery, is readily available in the market for some time and Fluoride Ion Battery (FIB), an anion battery, will be developed to replace LIB in near future. This is mainly due to three reasons; safety (formation of dendrites during high rate charging and discharging for LIB), higher energy density (energy stored per unit volume in FIB) and cost (high cost cobalt-based cathode). Having fluoride ions instead of lithium ions intercalating within FIB electrochemical cell can minimize safety issues and also increasing the stability within the cell. Nano-sized Lanthanum (III) fluoride (LaF3) is being used as a material for solid electrolytes as it has high ionic conductivity due to its tysonite-structure. This material has the potential to deliver a better performance within the cell. Adding on to that, metal elements (Calcium (Ca), Strontium (Sr) and Barium (Ba)) are used to dope into LaF3, creating defects within lattice to further enhance the performance. Solid electrolyte LaF3 material will be synthesized, characterized and then evaluating their ionic conductivity using a Swagelok cell and compared. A relationship between different element species doping, concentration and temperature effect of nano-sized LaF3 host materials with ionic conductivity are determined. Bachelor of Engineering (Materials Engineering) 2012-05-31T02:41:33Z 2012-05-31T02:41:33Z 2012 2012 Final Year Project (FYP) http://hdl.handle.net/10356/50213 en Nanyang Technological University 52 p. application/pdf
spellingShingle DRNTU::Library and information science
Tan, Bernard Jui Chin.
Ionic conductivity study of doped LaF3 as fluoride-ion conductors in fluoride-ion batteries
title Ionic conductivity study of doped LaF3 as fluoride-ion conductors in fluoride-ion batteries
title_full Ionic conductivity study of doped LaF3 as fluoride-ion conductors in fluoride-ion batteries
title_fullStr Ionic conductivity study of doped LaF3 as fluoride-ion conductors in fluoride-ion batteries
title_full_unstemmed Ionic conductivity study of doped LaF3 as fluoride-ion conductors in fluoride-ion batteries
title_short Ionic conductivity study of doped LaF3 as fluoride-ion conductors in fluoride-ion batteries
title_sort ionic conductivity study of doped laf3 as fluoride ion conductors in fluoride ion batteries
topic DRNTU::Library and information science
url http://hdl.handle.net/10356/50213
work_keys_str_mv AT tanbernardjuichin ionicconductivitystudyofdopedlaf3asfluorideionconductorsinfluorideionbatteries