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Ruddlesden–Popper phases of lithium-hydroxide-halide antiperovskites: two dimensional Li-ion conductors

Lithium-oxide-halide and lithium-hydroxide-halide antiperovskites were explored for potential electrolytes in all-solid Li-ion batteries. A single-phase sample of the Ruddlesden–Popper (RP) series of compounds, LiBr(Li(2)OHBr)(2) with double antiperovskite Li(2)OHBr layers and rigid rock-salt type L...

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Detalles Bibliográficos
Autores principales: Koedtruad, Anucha, Amano Patino, Midori, Chuang, Yu-Chun, Chen, Wei-tin, Kan, Daisuke, Shimakawa, Yuichi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9057836/
https://www.ncbi.nlm.nih.gov/pubmed/35516559
http://dx.doi.org/10.1039/d0ra07803d
Descripción
Sumario:Lithium-oxide-halide and lithium-hydroxide-halide antiperovskites were explored for potential electrolytes in all-solid Li-ion batteries. A single-phase sample of the Ruddlesden–Popper (RP) series of compounds, LiBr(Li(2)OHBr)(2) with double antiperovskite Li(2)OHBr layers and rigid rock-salt type LiBr layers, was obtained. Li(+)-ion vacancies are introduced in the double antiperovskite Li(2)OHBr layers but not in the LiBr layers and induce two-dimensional Li-ion conduction with low activation energy by mediating Li-ion hopping. In contrast to the Br-containing RP phase, Cl-containing Li-oxide-halide and Li-hydroxide-halide RP phases cannot be crystallized due to the structural mismatch between the antiperovskite layers and rigid LiCl layers.