Microemulsion-assisted synthesis of nanosized Li-Mn-O spinel cathodes for high-rate lithium-ion batteries

Xianhong Rui; Wenping Sun; Qingyu Yan; Tuti Mariana Lim; Maria Skyllas-Kazacos

doi:10.1002/cplu.201402267

Microemulsion-assisted synthesis of nanosized Li-Mn-O spinel cathodes for high-rate lithium-ion batteries

Xianhong Rui, Wenping Sun, Qingyu Yan^*, Tuti Mariana Lim, Maria Skyllas-Kazacos

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Li_1.16Mn_1.84O₄ 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 Li_1.16Mn_1.84O₄ shows stable cycling performance and superior rate capabilities as compared with the corresponding bulk material, for example, the nano-sized Li_1.16Mn_1.84O₄ electrode shows stable reversible capacities of 74 mAhg^-1 during the 1000th cycle at a high rate of 40 C between 3.0 and 4.5 V. In addition, Li_1.16Mn_1.84O₄ 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 mAhg^-1 at rates of 1 and 20 C, respectively.

Original language	English
Pages (from-to)	1794-1798
Number of pages	5
Journal	ChemPlusChem
Volume	79
Issue number	12
DOIs	https://doi.org/10.1002/cplu.201402267
Publication status	Published - Dec 2014
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2014 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

ASJC Scopus Subject Areas

General Chemistry

Keywords

Cathodes
High-rate capability
Lithium manganese oxide
Microemulsions
Nanoparticles

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/cplu.201402267

Cite this

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title = "Microemulsion-assisted synthesis of nanosized Li-Mn-O spinel cathodes for high-rate lithium-ion batteries",

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 mAhg-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 mAhg-1 at rates of 1 and 20 C, respectively.",

keywords = "Cathodes, High-rate capability, Lithium manganese oxide, Microemulsions, Nanoparticles",

author = "Xianhong Rui and Wenping Sun and Qingyu Yan and Lim, {Tuti Mariana} and Maria Skyllas-Kazacos",

note = "Publisher Copyright: {\textcopyright} 2014 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.",

year = "2014",

month = dec,

doi = "10.1002/cplu.201402267",

language = "English",

volume = "79",

pages = "1794--1798",

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TY - JOUR

T1 - Microemulsion-assisted synthesis of nanosized Li-Mn-O spinel cathodes for high-rate lithium-ion batteries

AU - Rui, Xianhong

AU - Sun, Wenping

AU - Yan, Qingyu

AU - Lim, Tuti Mariana

AU - Skyllas-Kazacos, Maria

PY - 2014/12

Y1 - 2014/12

N2 - 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 mAhg-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 mAhg-1 at rates of 1 and 20 C, respectively.

AB - 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 mAhg-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 mAhg-1 at rates of 1 and 20 C, respectively.

KW - Cathodes

KW - High-rate capability

KW - Lithium manganese oxide

KW - Microemulsions

KW - Nanoparticles

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JO - ChemPlusChem

JF - ChemPlusChem

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ER -

Microemulsion-assisted synthesis of nanosized Li-Mn-O spinel cathodes for high-rate lithium-ion batteries

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

UN SDGs

Access to Document

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