Exceptional superionic conductivity in disordered sodium decahydro-closo-decaborate

Terrence J. Udovic, Motoaki Matsuo, Wan Si Tang, Hui Wu, Vitalie Stavila, Alexei V. Soloninin, Roman V. Skoryunov, Olga A. Babanova, Alexander V. Skripov, John J. Rush, Atsushi Unemoto, Hitoshi Takamura, Shin Ichi Orimo

Research output: Contribution to journalArticlepeer-review

192 Citations (Scopus)


Na2B10H10 exhibits exceptional superionic conductivity above ca. 360 K (e.g., ca. 0.01 S cm-1 at 383 K) concomitant with its transition from an ordered monoclinic structure to a face-centeredcubic arrangement of orientationally disordered B10H102- anions harboring a vacancy-rich Na+ cation sublattice. This discovery represents a major advancement for solid-state Na+ fast-ion conduction at technologically relevant device temperatures. (Graph Presented).

Original languageEnglish
Pages (from-to)7622-7626
Number of pages5
JournalAdvanced Materials
Issue number45
Publication statusPublished - 2014 Dec


  • Conductivity
  • Sodium conductors
  • Sodium decahydro-closo-decaborate
  • Solid-state electrolytes
  • Superionic

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering


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