Needleless electrospinning for high throughput production of li7la3zr2o12 solid electrolyte nanofibers

Tanner Rosenthal, J. Mark Weller, Candace K. Chan

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Li7La3Zr2O12 (LLZO) is a promising ceramic Li-ion conductor that has been successfully prepared in nanowire morphology using electrospinning from polymer/sol-gel solutions followed by calcination. However, conventional single-needle electrospinning has low production rates <0.1 g/h, making scale-up of the materials for applications in solid-state electrolytes challenging. Herein, needleless electrospinning using a twisted wire spinneret is employed to prepare Al-doped LLZO (ALLZO). We find that the appropriate precursor solutions for needleless electrospinning require much lower viscosity and are more sensitive to environmental conditions than those used in single-needle electrospinning. The as-formed nanofibers display a nanoribbon morphology, and calcination at 700 °C for 2 h in air results in phase pure ALLZO interconnected nanostructures with a cubic crystal structure. The results show that needleless electrospinning is an effective approach for preparing as-spun nanofibers with yields of â 1 g/h possible, providing a higher throughput route toward Li+ conducting nanostructures for solid-state battery applications.

Original languageEnglish
Pages (from-to)17399-17405
Number of pages7
JournalIndustrial and Engineering Chemistry Research
Volume58
Issue number37
DOIs
Publication statusPublished - Sep 18 2019

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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