Characterization of LiMn2O4 thin films grown on Si substrates by pulsed laser deposition

Tang, S.B.; Xia, Hui; Lai, M.O.; Li, Lü

doi:10.1016/j.jallcom.2006.01.130

Cited by 21 publications

(16 citation statements)

References 19 publications

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“…7). For both of the voltammograms, there are two pairs of reversible peaks, i.e., oxidation and reduction peaks corresponding to Li + extraction and insertion, which reflect the typical Mn 3+ /Mn 4+ redox processes of the spinel structure in the 4 V domain [25,26].…”

Section: Resultsmentioning

confidence: 99%

Novel approach to preparation of LiMn2O4 core/LiNixMn2−xO4 shell composite

Li¹,

Xu²,

Wang³

2009

Applied Surface Science

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Section: Resultsmentioning

confidence: 99%

Novel approach to preparation of LiMn2O4 core/LiNixMn2−xO4 shell composite

Li¹,

Xu²,

Wang³

2009

Applied Surface Science

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“…The second red ox pair (4.25 V) is attributed to the intercalation/de-intercalation of lithium into the other half of the tetrahedral sites, where Li + ions do not interact. It is well known that these processes are accompanied by the reversible Mn 3+ /Mn 4+ red ox reactions, and hence the cycling reversibility of LiMn 2 O 4 cathode could be understood [18,37]. It is evident from Fig.…”

Section: Resultsmentioning

confidence: 93%

Effect of reaction temperature on morphology and electrochemical behavior

Sathiyaraj

Gangulibabu²,

Bhuvaneswari³

et al. 2010

Ionics

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LiCoO 2 and LiMn 2 O 4 compounds were synthesized using two different methods, viz., low-temperatureaided hydrothermal and high-temperature-assisted coprecipitation method. Keeping the reaction parameters such as type of precursors chosen and the medium of reaction as same for both the hydrothermal and co-precipitation methods, the effect of temperature in producing LiCoO 2 and LiMn 2 O 4 with varying physical as well as electrochemical properties has been studied. As expected, the effect of lowtemperature-involved hydrothermal method rendered finer particles of nanocrystalline nature with minimum strain, and the high-temperature synthesis of co-precipitation method produced slightly enhanced particle size with an increased strain value. The effect of size-grown particles resulting from co-precipitation method exhibited inferior electrochemical properties such as increasing resistance of the cell upon cycling and a significant decline in capacity behavior, irrespective of LiCoO 2 or LiMn 2 O 4 cathodes. On the other hand, hydrothermal synthesis of LiCoO 2 and LiMn 2 O 4 has exhibited acceptable specific capacity with an admissible capacity fade behavior and negligible internal resistance of the cell, thus qualifying the same as better-performing cathodes. Hence, the effect of low temperature in producing LiCoO 2 and LiMn 2 O 4 cathodes with facile intercalation and de-intercalation of lithium is demonstrated.

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“…Therefore, LiMn 2 O 4 prepared by different synthesis routes and precursors showed substantially different performance [20][21][22]. Slurry spray drying method is a novel and effective method to prepare spherical cathode materials [23][24][25].…”

Section: Introductionmentioning

confidence: 99%