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Superionic Conduction of Sodium and Lithium in Anion‐Mixed Hydroborates Na 3 BH 4 B 12 H 12 and (Li 0.7 Na 0.3 ) 3 BH 4 B 12 H 12
Author(s) -
Sadikin Yolanda,
Brighi Matteo,
Schouwink Pascal,
Černý Radovan
Publication year - 2015
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201501016
Subject(s) - ionic conductivity , materials science , lithium (medication) , fast ion conductor , electrolyte , ion , conductivity , thermal conduction , sodium , ionic bonding , analytical chemistry (journal) , inorganic chemistry , chemistry , electrode , medicine , organic chemistry , composite material , metallurgy , endocrinology , chromatography
Novel mixed‐anion compounds Na 3 BH 4 B 12 H 12 and (Li 0.7 Na 0.3 ) 3 BH 4 B 12 H12 show superionic conduction corresponding to highly disordered cations and continuous migration paths in the structure. Na‐rich Na 3 BH 4 B 12 H 12 with a room‐temperature conductivity of 0.5 × 10 −3 S cm −1 provides a light‐weight solution for the electrolyte in Na‐based, all solid‐state batteries. (Li 0.7 Na 0.3 ) 3 BH 4 B 12 H 12 favors ionic conductivity for both Li and Na cations, but only above 500 K.