Anharmonicity in LiBH4-LiI induced by anion exchange and temperature

A. Borgschulte; R. Gremaud; S. Kato; N. P. Stadie; A. Remhof; A. Züttel; M. Matsuo; S. I. Orimo

doi:10.1063/1.3467260

Anharmonicity in LiBH₄-LiI induced by anion exchange and temperature

A. Borgschulte, R. Gremaud, S. Kato, N. P. Stadie, A. Remhof, A. Züttel, M. Matsuo, S. I. Orimo

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

20 Citations (Scopus)

Abstract

The feasibility of spatially resolved Raman spectroscopy probing diffusion multiples as a high-throughput method to study phase transformations in Li-ion conductors is demonstrated. The method is applied to the pseudobinary LiBH ₄-LiI system, which shows high Li-ion conductivity in the HT-phase of LiBH₄. The vibrational properties measured as a function of composition and temperature corroborate the formation of a solid solution of Li (BH₄)_1-cI_c over nearly the entire phase diagram (0<c0.8±0.2). The results shed light on anharmonic effects responsible for the structural phase transformation in this system.

Original language	English
Article number	031916
Journal	Applied Physics Letters
Volume	97
Issue number	3
DOIs	https://doi.org/10.1063/1.3467260
Publication status	Published - 2010 Jul 19

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abstract = "The feasibility of spatially resolved Raman spectroscopy probing diffusion multiples as a high-throughput method to study phase transformations in Li-ion conductors is demonstrated. The method is applied to the pseudobinary LiBH 4-LiI system, which shows high Li-ion conductivity in the HT-phase of LiBH4. The vibrational properties measured as a function of composition and temperature corroborate the formation of a solid solution of Li (BH4)1-cIc over nearly the entire phase diagram (0",

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AU - Borgschulte, A.

AU - Gremaud, R.

AU - Kato, S.

AU - Stadie, N. P.

AU - Remhof, A.

AU - Züttel, A.

AU - Matsuo, M.

AU - Orimo, S. I.

N1 - Funding Information: This work was financially supported by the Swiss Federal Office of Energy.

PY - 2010/7/19

Y1 - 2010/7/19

N2 - The feasibility of spatially resolved Raman spectroscopy probing diffusion multiples as a high-throughput method to study phase transformations in Li-ion conductors is demonstrated. The method is applied to the pseudobinary LiBH 4-LiI system, which shows high Li-ion conductivity in the HT-phase of LiBH4. The vibrational properties measured as a function of composition and temperature corroborate the formation of a solid solution of Li (BH4)1-cIc over nearly the entire phase diagram (0

AB - The feasibility of spatially resolved Raman spectroscopy probing diffusion multiples as a high-throughput method to study phase transformations in Li-ion conductors is demonstrated. The method is applied to the pseudobinary LiBH 4-LiI system, which shows high Li-ion conductivity in the HT-phase of LiBH4. The vibrational properties measured as a function of composition and temperature corroborate the formation of a solid solution of Li (BH4)1-cIc over nearly the entire phase diagram (0

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Anharmonicity in LiBH₄-LiI induced by anion exchange and temperature

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