Stabilizing lithium and sodium fast-ion conduction in solid polyhedral-borate salts at device-relevant temperatures

Wan Si Tang, Motoaki Matsuo, Hui Wu, Vitalie Stavila, Atsushi Unemoto, Shin Ichi Orimo, Terrence J. Udovic

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)

Abstract

By a variety of techniques including X-ray powder diffraction, quasielastic neutron scattering, and AC impedance, we have probed the effect of mechanical milling on the phase behaviors of the different lithium and sodium closo-borate salt compounds containing B12H122-, B10H102-, and CB11H12- anions. We have found that the crystallite-size reduction and disordering effects of such milling enables the room-T stabilization of their high-T-like superionic-conducting phases. This demonstrates a viable strategy for better exploiting the impressive cation mobilities that are typically restricted to somewhat higher temperatures for this class of compounds.

Original languageEnglish
Pages (from-to)79-83
Number of pages5
JournalEnergy Storage Materials
Volume4
DOIs
Publication statusPublished - 2016 Jul 1

Keywords

  • Ball-milling
  • Closo-borate
  • Nanostructure
  • Phase transition
  • Superionic conductor

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Energy Engineering and Power Technology

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