Tailoring a Glass Network Structure through Addition of Transition Metal Oxides to Enhance Ionic Conductivity in Phosphate Glasses

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F25%3A39922970" target="_blank" >RIV/00216275:25310/25:39922970 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1021/acs.inorgchem.5c00313" target="_blank" >https://doi.org/10.1021/acs.inorgchem.5c00313</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.inorgchem.5c00313" target="_blank" >10.1021/acs.inorgchem.5c00313</a>

Result language
angličtina
Original language name
Tailoring a Glass Network Structure through Addition of Transition Metal Oxides to Enhance Ionic Conductivity in Phosphate Glasses
Original language description
In the development of oxide glass-based electrolytes and electrodes for solid-state batteries, high ionic conductivity represents an ultimate challenge. One way of increasing the ionic conductivity in these materials is to increase the mobility of ions through the addition of transition metal oxides. In this study, we report a significant enhancement of lithium-ion conductivity due to structural changes induced by addition of WO3 and MoO3. Despite the potential of WO3 and MoO3 to induce polaronic (electronic) conductivity, these glasses are purely ionic conductors. The increase in lithium-ion conductivity is approximately 5 and 4 orders of magnitude with addition of up to approximate to 40 mol % WO3 and MoO3, respectively. A detailed structural analysis shows that the increase in the mobility of Li+ ions is related to a strong facilitating effect of tungstate and molybdate units in the glass network. Moreover, this study also discusses similarities and differences in the dynamics of lithium and sodium ions in phosphate glasses containing WO3 and MoO3, and shows that the addition of WO3 can enhance the cathode performance of these glasses in both lithium-ion and sodium-ion batteries.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20500 - Materials engineering

Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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