The Effect of Titania Additives on the Performance of PEO-Based Solid Sodium Batteries: Bulk and Interfacial Aspects

Gayathri Peta, Hadas Alon-Yehezkel, Nagaprasad Reddy Samala, Shaul Bublil, Yuval Elias, Ilya Grinberg, Miryam Fayena-Greenstein, Doron Aurbach

Research output: Contribution to journalArticlepeer-review

Abstract

Nanometric fillers are known to affect the electrochemical performance of polymer electrolytes. Here, nanowires and nanotubes of TiO2 with the same crystal structure are compared as additives to poly(ethylene oxide) based electrolytes for solid state sodium batteries. Electrochemical studies of symmetric cells with blocking and non-blocking electrodes examined the effects of the additive shapes on the bulk electrolyte and Na-electrolyte interface. Impedance spectroscopy was used as a major electroanalytical tool. To obtain a full perspective, all-solid-state batteries were evaluated. In galvanostatic measurements the filler shape effect is most noticeable at a high current density. TiO2 nanotubes improve the solid electrolyte behavior considerably more than titania nanowires. This effect is related mainly to the interface of the polymeric matrix with the electrodes.

Original languageEnglish
Article number090516
JournalJournal of the Electrochemical Society
Volume170
Issue number9
DOIs
StatePublished - 2023

Bibliographical note

Publisher Copyright:
© 2023 The Electrochemical Society (“ECS”). Published on behalf of ECS by IOP Publishing Limited.

Fingerprint

Dive into the research topics of 'The Effect of Titania Additives on the Performance of PEO-Based Solid Sodium Batteries: Bulk and Interfacial Aspects'. Together they form a unique fingerprint.

Cite this