Cation ordering in Li2Mn3MO8 spinels: structural and vibration spectroscopy studies

Strobel, Pierre; Ibarra-Palos, Alejandro; Anne, M.; Poinsignon, C.; Crisci, Alexandre

doi:10.1016/s1293-2558(03)00134-1

Cited by 79 publications

(56 citation statements)

References 37 publications

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“…A small amount of Sn 4+ doping could stabilize the structure of the material, whereas the existence of too many Sn 4+ cations in the crystal lattice may induce large changes to the structure and cause irreversible phase transfer [17,41]. The capacity increases slightly at the outset, which is attributed to the expansion of the electrode materials and the electrolyte wetting the electrode material during the charge-discharge progress [35]. .…”

Section: Resultsmentioning

confidence: 99%

Synthesis and electrochemical performance of Sn-doped LiNi0.5Mn1.5O4 cathode material for high-voltage lithium-ion batteries

Hao

et al. 2017

Sci. China Mater.

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LiNi0.5Mn1.5−xSnxO4 (0 ≤ x ≤ 0.1) cathode materials with uniform and fine particle sizes were successfully synthesized by a two-step calcination of solid-state reaction method. As the cathode materials for lithium ion batteries, the LiNi0.5Mn1.48Sn0.02O4 shows the highest specific capacity and cycle stability. In the potential range of 3.5-4.9 V at room temperature, LiNi0.5Mn1.48Sn0.02O4 composite material shows a discharge capacity of more than 117 mA h g −1 at 0.1 C, while the corresponding discharge capacity of undoped LiNi0.5Mn1.5O4 is only 101 mA h g −1 . Moreover, in cycle performance, all the LiNi0.5Mn1.5−xSnxO4 (0 ≤ x ≤ 0.1) samples show better capacity retention than the undoped LiNi0.5Mn1.5O4 at 1 C rate after 100 cycles. Especially, for the LiNi0.5Mn1.5O4, the discharge capacity after 100 cycles is 90 mA h g −1 , while the corresponding discharge capacities of the undoped LiNi0.5Mn1.5O4 is only 56.1 mA h g −1 . The significantly enhanced DLi + and the enlarged electronic conductivity make the Sn-doped spinel LiNi0.5Mn1.5O4 material present even more excellent electrochemical performances. These results reveal that Sn-doping is an effective way to improve electrochemical performances of LiNi0.5Mn1.5O4.

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Section: Resultsmentioning

confidence: 99%

Synthesis and electrochemical performance of Sn-doped LiNi0.5Mn1.5O4 cathode material for high-voltage lithium-ion batteries

Hao

et al. 2017

Sci. China Mater.

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“…Despite the replacement of a fraction of Mn ions by bigger Ni 2+ ions, the Mn valence change effect prevails [5]. Recently, Strobel et al [6] suggested that the occurrence of cation ordering corresponds to the largest valence difference ΔZ (Mn−M)≥2. The net result is thus a significant optimization of space occupation, leading to a reduced unit cell volume.…”

Section: Resultsmentioning

confidence: 99%

“…1. Recently, the formation of the ordered spinel has been confirmed by combining X-ray diffraction (XRD) and Fourier transform infrared (FTIR) measurements [6,15].…”

Section: Introductionmentioning

confidence: 99%

Structure and insertion properties of disordered and ordered LiNi0.5Mn1.5O4 spinels prepared by wet chemistry

Amdouni

Zaghib

Giligny

et al. 2006

Ionics

210

174

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We present the synthesis, characterization, and electrode behavior of LiNi 0.5 Mn 1.5 O 4 spinels prepared by the wet-chemical method via citrate precursors. The phase evolution was studied as a function of nickel substitution and upon intercalation and deintercalation of Li ions. Characterization methods include X-ray diffraction, SEM, Raman, Fourier transform infrared, superconducting quantum interference device, and electron spin resonance.

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“…Even in the x = 1 case (50 % Mn dilution), the frustration remains, probably because the substitution is random. In Li(Mn 1.5 M 0.5 )O 4 compositions with other magnetic as well as non-magnetic M substituents, the Weiss constants are less negative than in unsubstituted LiMn 2 O 4 , and cation ordering, which has been shown to occur for M = Mg, Ni or Cu [12], does not suppress the frustration either [13]. The M = Ni case shows particularly strong magnetic interactions starting at 120 K resembling the ferrimagnetic behaviour previously observed in NiMn 2 O 4 [14].…”

Section: Magnetism In Manganese Compounds With Intermediate Anglesmentioning

confidence: 98%

Crystal chemistry of non‐perovskite manganese oxides – implications for magnetic properties

Strobel¹,

Ibarra-Palos²,

Pernet³

et al. 2004

phys. stat. sol. (c)

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Cation ordering in Li2Mn3MO8 spinels: structural and vibration spectroscopy studies

Cited by 79 publications

References 37 publications

Synthesis and electrochemical performance of Sn-doped LiNi0.5Mn1.5O4 cathode material for high-voltage lithium-ion batteries

Synthesis and electrochemical performance of Sn-doped LiNi0.5Mn1.5O4 cathode material for high-voltage lithium-ion batteries

Structure and insertion properties of disordered and ordered LiNi0.5Mn1.5O4 spinels prepared by wet chemistry

Crystal chemistry of non‐perovskite manganese oxides – implications for magnetic properties

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