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Ionic Conductivity of Lithium Germanium Phosphate Glass-Ceramics

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F19%3A39914969" target="_blank" >RIV/00216275:25310/19:39914969 - isvavai.cz</a>

  • Result on the web

    <a href="https://pubs.acs.org/doi/10.1021/acs.jpcc.9b03666" target="_blank" >https://pubs.acs.org/doi/10.1021/acs.jpcc.9b03666</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1021/acs.jpcc.9b03666" target="_blank" >10.1021/acs.jpcc.9b03666</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Ionic Conductivity of Lithium Germanium Phosphate Glass-Ceramics

  • Original language description

    In this study, the effect of induced crystallization on the electrical transport was studied in the mixed glass former glasses with the composition 40Li(2)O-(60 - x)P2O5-xGeO(2), 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.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10402 - Inorganic and nuclear chemistry

Result continuities

  • Project

    <a href="/en/project/GA18-01976S" target="_blank" >GA18-01976S: New prospective phosphate and borophosphate glasses and glass-ceramics</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2019

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Physical Chemistry C

  • ISSN

    1932-7447

  • e-ISSN

  • Volume of the periodical

    123

  • Issue of the periodical within the volume

    38

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    11

  • Pages from-to

    23312-23322

  • UT code for WoS article

    000488334700004

  • EID of the result in the Scopus database