Complex hydrides with (BH4)- and (NH 2)- anions as new lithium fast-ion conductors

Motoaki Matsuo; Arndt Remhof; Pascal Martelli; Riccarda Caputo; Matthias Ernst; Yohei Miura; Toyoto Sato; Hiroyuki Oguchi; Hideki Maekawa; Hitoshi Takamura; Andreas Borgschulte; Andreas Züttel; Shin Ichi Orimo

doi:10.1021/ja907249p

Complex hydrides with (BH₄)^- and (NH ₂)^- anions as new lithium fast-ion conductors

Motoaki Matsuo, Arndt Remhof, Pascal Martelli, Riccarda Caputo, Matthias Ernst, Yohei Miura, Toyoto Sato, Hiroyuki Oguchi, Hideki Maekawa, Hitoshi Takamura, Andreas Borgschulte, Andreas Züttel, Shin Ichi Orimo

Research output: Contribution to journal › Article › peer-review

171 Citations (Scopus)

Abstract

(Graph Presented) Some of the authors have reported that a complex hydride, Li(BH₄), with the (BH₄)^- anion exhibits lithium fast-ion conduction (more than 1 ± 10^-3 S/cm) accompanied by the structural transition at ∼390 K for the first time in 30 years since the conduction in Li₂(NH) was reported in 1979. Here we report another conceptual study and remarkable results of Li₂(BH ₄)(NH₂) and Li₄(BH₄)(NH ₂)₃ combined with the (BH₄)^- and (NH₂)^- anions showing ion conductivities 4 orders of magnitude higher than that for Li(BH₄) at RT, due to being provided with new occupation sites for Li⁺ ions. Both Li₂(BH ₄)(NH₂) and Li₄(BH₄)(NH ₂)₃ exhibit a lithium fast-ion conductivity of 2 × 10^-4 S/cm at RT, and the activation energy for conduction in Li ₄(BH₄)(NH₂)₃ is evaluated to be 0.26 ev, less than half those in Li₂(BH₄)(NH₂) and Li(BH₄). This study not only demonstrates an important direction in which to search for higher ion conductivity in complex hydrides but also greatly increases the material variations of solid electrolytes.

Original language	English
Pages (from-to)	16389-16391
Number of pages	3
Journal	Journal of the American Chemical Society
Volume	131
Issue number	45
DOIs	https://doi.org/10.1021/ja907249p
Publication status	Published - 2009 Nov 27

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

Access to Document

10.1021/ja907249p

Cite this

@article{7430dc3d609c4b729a6d83e0ede2f167,

title = "Complex hydrides with (BH4)- and (NH 2)- anions as new lithium fast-ion conductors",

abstract = "(Graph Presented) Some of the authors have reported that a complex hydride, Li(BH4), with the (BH4)- anion exhibits lithium fast-ion conduction (more than 1 ± 10-3 S/cm) accompanied by the structural transition at ∼390 K for the first time in 30 years since the conduction in Li2(NH) was reported in 1979. Here we report another conceptual study and remarkable results of Li2(BH 4)(NH2) and Li4(BH4)(NH 2)3 combined with the (BH4)- and (NH2)- anions showing ion conductivities 4 orders of magnitude higher than that for Li(BH4) at RT, due to being provided with new occupation sites for Li+ ions. Both Li2(BH 4)(NH2) and Li4(BH4)(NH 2)3 exhibit a lithium fast-ion conductivity of 2 × 10-4 S/cm at RT, and the activation energy for conduction in Li 4(BH4)(NH2)3 is evaluated to be 0.26 ev, less than half those in Li2(BH4)(NH2) and Li(BH4). This study not only demonstrates an important direction in which to search for higher ion conductivity in complex hydrides but also greatly increases the material variations of solid electrolytes.",

author = "Motoaki Matsuo and Arndt Remhof and Pascal Martelli and Riccarda Caputo and Matthias Ernst and Yohei Miura and Toyoto Sato and Hiroyuki Oguchi and Hideki Maekawa and Hitoshi Takamura and Andreas Borgschulte and Andreas Z{\"u}ttel and Orimo, {Shin Ichi}",

year = "2009",

month = nov,

day = "27",

doi = "10.1021/ja907249p",

language = "English",

volume = "131",

pages = "16389--16391",

journal = "Journal of the American Chemical Society",

issn = "0002-7863",

publisher = "American Chemical Society",

number = "45",

}

TY - JOUR

T1 - Complex hydrides with (BH4)- and (NH 2)- anions as new lithium fast-ion conductors

AU - Matsuo, Motoaki

AU - Remhof, Arndt

AU - Martelli, Pascal

AU - Caputo, Riccarda

AU - Ernst, Matthias

AU - Miura, Yohei

AU - Sato, Toyoto

AU - Oguchi, Hiroyuki

AU - Maekawa, Hideki

AU - Takamura, Hitoshi

AU - Borgschulte, Andreas

AU - Züttel, Andreas

AU - Orimo, Shin Ichi

PY - 2009/11/27

Y1 - 2009/11/27

N2 - (Graph Presented) Some of the authors have reported that a complex hydride, Li(BH4), with the (BH4)- anion exhibits lithium fast-ion conduction (more than 1 ± 10-3 S/cm) accompanied by the structural transition at ∼390 K for the first time in 30 years since the conduction in Li2(NH) was reported in 1979. Here we report another conceptual study and remarkable results of Li2(BH 4)(NH2) and Li4(BH4)(NH 2)3 combined with the (BH4)- and (NH2)- anions showing ion conductivities 4 orders of magnitude higher than that for Li(BH4) at RT, due to being provided with new occupation sites for Li+ ions. Both Li2(BH 4)(NH2) and Li4(BH4)(NH 2)3 exhibit a lithium fast-ion conductivity of 2 × 10-4 S/cm at RT, and the activation energy for conduction in Li 4(BH4)(NH2)3 is evaluated to be 0.26 ev, less than half those in Li2(BH4)(NH2) and Li(BH4). This study not only demonstrates an important direction in which to search for higher ion conductivity in complex hydrides but also greatly increases the material variations of solid electrolytes.

AB - (Graph Presented) Some of the authors have reported that a complex hydride, Li(BH4), with the (BH4)- anion exhibits lithium fast-ion conduction (more than 1 ± 10-3 S/cm) accompanied by the structural transition at ∼390 K for the first time in 30 years since the conduction in Li2(NH) was reported in 1979. Here we report another conceptual study and remarkable results of Li2(BH 4)(NH2) and Li4(BH4)(NH 2)3 combined with the (BH4)- and (NH2)- anions showing ion conductivities 4 orders of magnitude higher than that for Li(BH4) at RT, due to being provided with new occupation sites for Li+ ions. Both Li2(BH 4)(NH2) and Li4(BH4)(NH 2)3 exhibit a lithium fast-ion conductivity of 2 × 10-4 S/cm at RT, and the activation energy for conduction in Li 4(BH4)(NH2)3 is evaluated to be 0.26 ev, less than half those in Li2(BH4)(NH2) and Li(BH4). This study not only demonstrates an important direction in which to search for higher ion conductivity in complex hydrides but also greatly increases the material variations of solid electrolytes.

UR - http://www.scopus.com/inward/record.url?scp=70450194547&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=70450194547&partnerID=8YFLogxK

U2 - 10.1021/ja907249p

DO - 10.1021/ja907249p

M3 - Article

C2 - 19856969

AN - SCOPUS:70450194547

SN - 0002-7863

VL - 131

SP - 16389

EP - 16391

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 45

ER -

Complex hydrides with (BH₄)^- and (NH ₂)^- anions as new lithium fast-ion conductors

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this