Lithium based solid electrolytes are mainly useful for utilization in high energy density batteries, supercapacitors, sensors, displays and electrochemical devices. They generally crystallize in rhombohedral R3-c(167) space group related to open structures and the monovalent Li+ cation can easily migrate in lattice with low activation energy. These materials are usually obtained by powder sintering route and the crystallization of these glasses. The studies of crystallization of Li2O–Al2O3–GeO2–P2O5 glasses showed that one of dominant crystal phase precipitated in glass matrix is NASICON - type LiGe2(PO4)3 crystals. It was detected that this glass crystallizes by the volume crystallization mechanism. The enthalpy of crystallization ΔHcryst= -48.36 kJmol-1 was determined. The density of the crystalline phase was ρ=3.52 gcm-3 and molar volume Vm = 121.09 ·10-6 m3. The ionic conductivity of the test phase which be-longs to the solid solutions is about 6.2· 10−6 Scm-1 at room temperature.
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It may be considered that the structure of this glass consists of GeO6 octahedra and PO4 tetrahedra. The basic unit of this glass consists of two GeO6 octahedra and PO4 tetrahedra corresponding to [Ge2(PO4)]. Each GeO6 octahedron is connected to three PO4 tetrahedra, each of which is linked to four GeO6 octahedra.
These units in turn are connected to form `ribbons` along the c-axis and the ribbons are joined together along the a-and b-axis by PO4 tetrahedra. This structure results in cavities where lithium ions reside and in bottlenecks in which they pass through.
TY - CONF
AU - Savić, Veljko
AU - Matijašević, Srđan
AU - Grujić, Snežana
AU - Topalović, Vladimir
AU - Smiljanić, Sonja
AU - Nikolić, Jelena
AU - Zildžović, Snežana
PY - 2017
UR - https://ritnms.itnms.ac.rs/handle/123456789/789
AB - Lithium based solid electrolytes are mainly useful for utilization in high energy density batteries, supercapacitors, sensors, displays and electrochemical devices. They generally crystallize in rhombohedral R3-c(167) space group related to open structures and the monovalent Li+ cation can easily migrate in lattice with low activation energy. These materials are usually obtained by powder sintering route and the crystallization of these glasses. The studies of crystallization of Li2O–Al2O3–GeO2–P2O5 glasses showed that one of dominant crystal phase precipitated in glass matrix is NASICON - type LiGe2(PO4)3 crystals. It was detected that this glass crystallizes by the volume crystallization mechanism. The enthalpy of crystallization ΔHcryst= -48.36 kJmol-1 was determined. The density of the crystalline phase was ρ=3.52 gcm-3 and molar volume Vm = 121.09 ·10-6 m3. The ionic conductivity of the test phase which be-longs to the solid solutions is about 6.2· 10−6 Scm-1 at room temperature.
It may be considered that the structure of this glass consists of GeO6 octahedra and PO4 tetrahedra. The basic unit of this glass consists of two GeO6 octahedra and PO4 tetrahedra corresponding to [Ge2(PO4)]. Each GeO6 octahedron is connected to three PO4 tetrahedra, each of which is linked to four GeO6 octahedra.
These units in turn are connected to form `ribbons` along the c-axis and the ribbons are joined together along the a-and b-axis by PO4 tetrahedra. This structure results in cavities where lithium ions reside and in bottlenecks in which they pass through.
PB - Belgrade : Association of Metallurgical Engineers of Serbia
C3 - Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2017
T1 - Ion conductive glass-ceramics in the system Li2O·Al2O3·GeO2·P2O5
EP - 46
SP - 46
ER -
@conference{
author = "Savić, Veljko and Matijašević, Srđan and Grujić, Snežana and Topalović, Vladimir and Smiljanić, Sonja and Nikolić, Jelena and Zildžović, Snežana",
year = "2017",
abstract = "Lithium based solid electrolytes are mainly useful for utilization in high energy density batteries, supercapacitors, sensors, displays and electrochemical devices. They generally crystallize in rhombohedral R3-c(167) space group related to open structures and the monovalent Li+ cation can easily migrate in lattice with low activation energy. These materials are usually obtained by powder sintering route and the crystallization of these glasses. The studies of crystallization of Li2O–Al2O3–GeO2–P2O5 glasses showed that one of dominant crystal phase precipitated in glass matrix is NASICON - type LiGe2(PO4)3 crystals. It was detected that this glass crystallizes by the volume crystallization mechanism. The enthalpy of crystallization ΔHcryst= -48.36 kJmol-1 was determined. The density of the crystalline phase was ρ=3.52 gcm-3 and molar volume Vm = 121.09 ·10-6 m3. The ionic conductivity of the test phase which be-longs to the solid solutions is about 6.2· 10−6 Scm-1 at room temperature.
It may be considered that the structure of this glass consists of GeO6 octahedra and PO4 tetrahedra. The basic unit of this glass consists of two GeO6 octahedra and PO4 tetrahedra corresponding to [Ge2(PO4)]. Each GeO6 octahedron is connected to three PO4 tetrahedra, each of which is linked to four GeO6 octahedra.
These units in turn are connected to form `ribbons` along the c-axis and the ribbons are joined together along the a-and b-axis by PO4 tetrahedra. This structure results in cavities where lithium ions reside and in bottlenecks in which they pass through.",
publisher = "Belgrade : Association of Metallurgical Engineers of Serbia",
journal = "Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2017",
title = "Ion conductive glass-ceramics in the system Li2O·Al2O3·GeO2·P2O5",
pages = "46-46"
}
Savić, V., Matijašević, S., Grujić, S., Topalović, V., Smiljanić, S., Nikolić, J.,& Zildžović, S.. (2017). Ion conductive glass-ceramics in the system Li2O·Al2O3·GeO2·P2O5. in Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2017
Belgrade : Association of Metallurgical Engineers of Serbia., 46-46.
Savić V, Matijašević S, Grujić S, Topalović V, Smiljanić S, Nikolić J, Zildžović S. Ion conductive glass-ceramics in the system Li2O·Al2O3·GeO2·P2O5. in Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2017. 2017;:46-46..
Savić, Veljko, Matijašević, Srđan, Grujić, Snežana, Topalović, Vladimir, Smiljanić, Sonja, Nikolić, Jelena, Zildžović, Snežana, "Ion conductive glass-ceramics in the system Li2O·Al2O3·GeO2·P2O5" in Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2017 (2017):46-46.
