Ionic Conductivity of Lithium Germanium Phosphate
Glass-Ceramics
Posted on 2019-09-11 - 18:37
In
this study, the effect of induced crystallization on the electrical
transport was studied in the mixed glass former glasses with the composition
40Li2O–(60 – x)P2O5–xGeO2, x = 0–25 mol %, as potential solid electrolytes for Li-ion
batteries. It has been of interest to investigate how various steps
of crystallization influence electrical transport in prepared glass-ceramics.
Structural properties of obtained glass-ceramics, which contain single
to multicrystalline phases, are characterized by XRD, MAS NMR, and
SEM and then correlated with electrical properties studied using impedance
spectroscopy. For GeO2-free glass-ceramics, a slight increase
in the electrical conductivity is evidenced, whereas a conductivity
decrease for glass-ceramics containing up to 20 mol % GeO2 is related to the reduction of a number of lithium ions in the residual
glassy phase, since the LiPO3 crystalline phase is formed.
The crystallization in the glass-ceramics with higher GeO2 content causes an increase in the electrical conductivity. This
increase is a result of two simultaneous contributions. One is the
formation of crystallites with well-defined shapes, which creates
easy conduction pathways for lithium ion transport within crystalline
grains and along crystalline grain boundaries. And the second one
is the increase of the predominantly phosphate amorphous phase for
samples Ge-25.
CITE THIS COLLECTION
DataCite
3 Biotech
3D Printing in Medicine
3D Research
3D-Printed Materials and Systems
4OR
AAPG Bulletin
AAPS Open
AAPS PharmSciTech
Abhandlungen aus dem Mathematischen Seminar der Universität Hamburg
ABI Technik (German)
Academic Medicine
Academic Pediatrics
Academic Psychiatry
Academic Questions
Academy of Management Discoveries
Academy of Management Journal
Academy of Management Learning and Education
Academy of Management Perspectives
Academy of Management Proceedings
Academy of Management Review
Pavić, Luka; Sklepić, Kristina; Skoko, Željko; Tricot, Gregory; Mošner, Petr; Koudelka, Ladislav; et al. (2019). Ionic Conductivity of Lithium Germanium Phosphate
Glass-Ceramics. ACS Publications. Collection. https://doi.org/10.1021/acs.jpcc.9b03666
or
Select your citation style and then place your mouse over the citation text to select it.
SHARE
Usage metrics
Read the peer-reviewed publication
AUTHORS (7)
LP
Luka Pavić
KS
Kristina Sklepić
ZS
Željko Skoko
GT
Gregory Tricot
PM
Petr Mošner
LK
Ladislav Koudelka
AM
Andrea Moguš-Milanković
KEYWORDS
glass-ceramiclithium ionsmolGeO 2Ionic ConductivityLiPO 3XRDgrain boundariesGeO 2 content causesimpedance spectroscopySEMlithium ion transportMAS NMRconductivity decreaseStructural propertiesLithium Germanium Phosphate Glass-Ceramicsmulticrystalline phasesconduction pathwayscrystallization influenceLi-ion batteries