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Lithium spinel framework

Early work [97] showed that it is possible to remove lithium from LiMn204 using a mild acid treatment. During this process, Mn is oxidized from an average -1-3.5 oxidation state to -t4, and X-Mn02, which retains the spinel framework, is formed (Eq. 2.1). In addition, some dissolutimi of Mn occurs ... [Pg.16]

Ariyoshi K, Iwata E, Kuniyoshi M, Wakabayashi H, Ohzuku T (2006) Lithium aluminum manganese oxide having spinel framework structure for long-life lithium-ion batteies. Electrochem Sol State Lett 9 A557-A560... [Pg.41]

Ohzuku T, Takeda S, Iwanaga M (1999) Solid-state redox potentials for Li[Mei/2Mn3/2]04 (Me 3d-transition metal) having spinel-framework structures a series of 5 volt materials for advanced lithium-ion batteries. J Power Sources 81-82 90-94... [Pg.42]

One example of anodes alternative to graphite is lithium titanium oxide, Li4Ti50i2 (LTO). This material has a defective spinel-framework structure... [Pg.129]

Figure 11. The [B2]X4 framework of an v4[B 2X4 spinel, e.g. A - MnO, with three dimensional pathways for lithium-ion transport. (The direction of transport perpendicular to the plane of the paper has not been marked by an arrow). Figure 11. The [B2]X4 framework of an v4[B 2X4 spinel, e.g. A - MnO, with three dimensional pathways for lithium-ion transport. (The direction of transport perpendicular to the plane of the paper has not been marked by an arrow).
The LiMn204 spinel structure, shown in Figure 19, can be described as a cubic close-packed oxygen array with the manganese cations occupying one-half of the octahedral interstitial sites and the lithium cations one-eighth of the tetrahedral sites. The interstitial tetrahedral and octahedral spaces in the [Mn2]04 framework are interconnected to form three-dimensional pathways for Li+ ion diffusion (lO -lO " m s ). [Pg.3856]

The 1-V step in the voltage profile of LF[Mn2]04 limits the capacity of this spinel to one LF per two Mn atoms at either 3.0 V or 4.0 V versus Lithium. The flat 3.0 V plateau reflects a cubic to tetragonal transition of the [Mn2]04 framework due to a cooperative Jahn-Teller site distortion where more than half of the 16 sites are occupied by Mn(III) ions. Octahedral-site, high-spin Mn(III) ions have a localized spin 5 = 2 with one electron occupying an orbitally twofold-degenerate pair of... [Pg.80]

See other pages where Lithium spinel framework is mentioned: [Pg.303]    [Pg.309]    [Pg.309]    [Pg.310]    [Pg.313]    [Pg.314]    [Pg.315]    [Pg.316]    [Pg.324]    [Pg.303]    [Pg.309]    [Pg.309]    [Pg.310]    [Pg.314]    [Pg.315]    [Pg.316]    [Pg.1020]    [Pg.262]    [Pg.355]    [Pg.356]    [Pg.81]    [Pg.126]    [Pg.186]    [Pg.308]    [Pg.306]    [Pg.262]    [Pg.45]    [Pg.133]    [Pg.211]    [Pg.213]    [Pg.215]    [Pg.484]    [Pg.487]    [Pg.210]    [Pg.42]    [Pg.190]    [Pg.54]    [Pg.84]    [Pg.308]    [Pg.1078]   
See also in sourсe #XX -- [ Pg.80 ]



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