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Title: Microemulsion-assisted synthesis of nanosized Li-Mn-O spinel cathodes for high-rate lithium-ion batteries
Authors: Rui, Xianhong
Sun, Wenping
Yan, Qingyu
Lim, Tuti Mariana
Skyllas-Kazacos, Maria
Keywords: DRNTU::Engineering::Materials::Nanostructured materials
Issue Date: 2014
Source: Rui, X., Sun, W., Yan, Q., Lim, T. M., & Skyllas-Kazacos, M. (2014). Microemulsion-assisted synthesis of nanosized Li-Mn-O spinel cathodes for high-rate lithium-ion batteries. ChemPlusChem, 79(12), 1794–1798.
Series/Report no.: ChemPlusChem
Abstract: Li1.16Mn1.84O4 nanoparticles (50–90 nm) with cubic spinel structure are synthesized by combining a microemulsion process to produce ultrafine Mn(OH)2 nanocrystals (3–8 nm) with a solid-state lithiation step. The nanostructured lithium-rich Li1.16Mn1.84O4 shows stable cycling performance and superior rate capabilities as compared with the corresponding bulk material, for example, the nano-sized Li1.16Mn1.84O4 electrode shows stable reversible capacities of 74 mAh g−1 during the 1000th cycle at a high rate of 40 C between 3.0 and 4.5 V. In addition, Li1.16Mn1.84O4 nanoparticles also show high Li storage properties over an enlarged voltage window of 2.0–4.5 V with high capacities and stable cyclability, for example, delivering discharge capacities of 209 and 114 mAh g−1 at rates of 1 and 20 C, respectively.
ISSN: 2192-6506
DOI: 10.1002/cplu.201402267
Rights: © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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