title: Sodium superionic conduction in Na2B12H12.
abstract: Impedance measurements indicate that Na2B12H12 exhibits dramatic Na(+) conductivity (on the order of 0.1 S cm(-1)) above its order-disorder phase-transition at ≈529 K, rivaling that of current, solid-state, ceramic-based, Na-battery electrolytes. Superionicity may be aided by the large size, quasispherical shape, and high rotational mobility of the B12H12(2-) anions.
authors.affiliation: NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899-6102, USA. udovic@nist.gov.
authors.forename: Terrence J
authors.initials: TJ
authors.lastname: Udovic
authors.forename: Motoaki
authors.initials: M
authors.lastname: Matsuo
authors.forename: Atsushi
authors.initials: A
authors.lastname: Unemoto
authors.forename: Nina
authors.initials: N
authors.lastname: Verdal
authors.forename: Vitalie
authors.initials: V
authors.lastname: Stavila
authors.forename: Alexander V
authors.initials: AV
authors.lastname: Skripov
authors.forename: John J
authors.initials: JJ
authors.lastname: Rush
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Takamura
authors.forename: Shin-ichi
authors.initials: S
authors.lastname: Orimo