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Journal ArticleDOI

Structural classification and properties of the layered oxides

TLDR
In this article, a packing of octahedral and tetrahedral sheets where the alkali ions and the vacancies are distributed is characterized for the pseudo-2D materials AxMO2 and A2MO3 oxides.
Abstract
Layer oxides with formula AxMO2 where M stands for a transition element with two oxidation states or for a mixture of tetravalent and trivalent (or eventually divalent) elements are obtained for 0.5 ≤ x ≤ 1. The lattice is built up by sheets of edge sharing MO6 octahedra between which the alkali ions are inserted with trigonal prismatic or octahedral environment. Similar structures can be found among A2MO3 oxides, the alkali ions lying between (A13M23)O2 sheets. The influence of the pressure on the stability of the various packings is discussed. Layer structures are also obtained for the compositions Li8MO6, Li7L□O6 and Li6In2□O6. Structures of these pseudo-2D materials are characterized by a packing of octahedral and tetrahedral sheets where the alkali ions and the vacancies are distributed. Transport properties of these materials have been studied.

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Citations
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Journal ArticleDOI

Sodium‐Ion Batteries

TL;DR: In this paper, the status of ambient temperature sodium ion batteries is reviewed in light of recent developments in anode, electrolyte and cathode materials, including high performance layered transition metal oxides and polyanionic compounds.
Journal ArticleDOI

Sodium-ion batteries: present and future

TL;DR: Current research on materials is summarized and discussed and future directions for SIBs are proposed to provide important insights into scientific and practical issues in the development of S IBs.
Journal ArticleDOI

Electrode Materials for Rechargeable Sodium-Ion Batteries: Potential Alternatives to Current Lithium-Ion Batteries

TL;DR: In this paper, both negative and positive electrode materials in NIB are briefly reviewed, and it is concluded that cost-effective NIB can partially replace Li-ion batteries, but requires further investigation and improvement.
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Room-temperature stationary sodium-ion batteries for large-scale electric energy storage

TL;DR: In this paper, a variety of electrode materials including cathodes and anodes as well as electrolytes for room-temperature stationary sodium-ion batteries are briefly reviewed and compared the difference in storage behavior between Na and Li in their analogous electrodes and summarize the sodium storage mechanisms in available electrode materials.
References
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Journal ArticleDOI

Evolution structurale et proprietes physiques des phases AXMO2 (A = Na, K; M = Cr, Mn, Co) (x ⩽ 1)

TL;DR: In this paper, the influence of the structure on magnetic properties of the A X MO 2 (x ⩽ 1) phases was discussed and the authors classified the A x MO 2 phases into three main groups: layer structures, anionic packing, and tunnel structures.
Journal ArticleDOI

Sur de nouveaux conducteurs ioniques a structure lamellaire

TL;DR: In this article, the ionic conductivity of new sheet phases obtained in the KLO/sub 2/--MO/sub n/ (L = In, Sc; M = Zr, Hf, Sn, Pb) systems and which are electronic insulators, was investigated.
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Sur un diagramme ionicité-structure pour les composes intercalaires alcalins des sulfures lamellaires

TL;DR: In this paper, a discussion des types structuraux des composes intercalaires is conducted, and a diagramme general peut etre construit; il est susceptible d'etre utilise a la prevision des types structural and permet d'interpreter les phases de stade II.
Journal ArticleDOI

Des conducteurs ioniques pseudo-bidimensionnels: Li8MO6 (M = Zr, Sn), Li7LO6 (L = Nb, Ta) et Li6In2O6

TL;DR: In this article, the ionic conductivity of pseudo-2D oxides Li 8 MO 6 (M = Zr, Sn), Li 7 LO 6 (L = Nb, Ta) and Li 6 In 2 O 6 has been measured and related to their structures.
Journal ArticleDOI

Stabilite relative des environnements octaedrique et prismatique triangulaire dans les oxydes lamellaires alcalins AxMO2 (x ⩽ 1)

TL;DR: In this article, the relative stability of octahedral and trigonal prismatic coordination in layered oxides A x MO 2 (x ⩽ 1) is discussed, and Rouxel's diagram for the A x MS 2 intercalation compounds allows a classification of both types of environment.
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