Microwave-assisted synthesis of flower-like structure ε-MnO 2 as cathode for lithium ion batteries

Dan Li; Guodong Du; Jieqiang Wang; Zaiping Guo; Zhixin Chen; Huakun Liu

doi:10.1002/jccs.201200193

Microwave-assisted synthesis of flower-like structure ε-MnO ₂ as cathode for lithium ion batteries

Dan Li
, Guodong Du
, Jieqiang Wang
, Zaiping Guo
, Zhixin Chen
, Huakun Liu

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

22 Citations (Scopus)

Abstract

Nanostructured flower-like ε-MnO 2 and α-MnO 2 nanowires were prepared by themicrowave-assisted hydrothermalmethod at 110 °C and 140 °C. The ε-nanoflowers are about 500 nm in size and are composed of petals about 100 nm in length, while the α-nanowires are 20-30 nm in diameter and about 1 μm in length. The ε-MnO 2 demonstrates higher initial discharge capacity, while the α-MnO 2 shows greater cycling stability in different voltage ranges. Both phases of MnO 2 show better cycling performance in ethylene carbonate (EC)/diethyl carbonate electrolyte (DEC) than in EC/dimethyl carbonate (DMC) electrolyte. The ε-MnO 2 sample delivered a discharge capacity of 116.2 mAh g -1 for up to 100 cycles, indicating that it is a promising cathode material for lithium ion batteries. © 2012 The Chemical Society Located in Taipei & Wiley-VCH Verlag GmbH & Co. KGaA,Weinheim.

Original language	English
Pages (from-to)	1211-1215
Journal	Journal of the Chinese Chemical Society
Volume	59
Issue number	10
DOIs	https://doi.org/10.1002/jccs.201200193
Publication status	Published - Oct 2012
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

This work was supported by the Australian Research Council through a Discovery Project (DP1094261) and the Key Subject (Laboratory) Research Foundation of Shan-dong Province in P. R. China.

UN SDGs

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

SDG 7 Affordable and Clean Energy

Research Keywords

Cathode
Lithium ion batteries
Manganese dioxide
Microwave-assisted hydrothermal

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Cite this

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title = "Microwave-assisted synthesis of flower-like structure ε-MnO 2 as cathode for lithium ion batteries",

abstract = "Nanostructured flower-like ε-MnO 2 and α-MnO 2 nanowires were prepared by themicrowave-assisted hydrothermalmethod at 110 °C and 140 °C. The ε-nanoflowers are about 500 nm in size and are composed of petals about 100 nm in length, while the α-nanowires are 20-30 nm in diameter and about 1 μm in length. The ε-MnO 2 demonstrates higher initial discharge capacity, while the α-MnO 2 shows greater cycling stability in different voltage ranges. Both phases of MnO 2 show better cycling performance in ethylene carbonate (EC)/diethyl carbonate electrolyte (DEC) than in EC/dimethyl carbonate (DMC) electrolyte. The ε-MnO 2 sample delivered a discharge capacity of 116.2 mAh g -1 for up to 100 cycles, indicating that it is a promising cathode material for lithium ion batteries. {\textcopyright} 2012 The Chemical Society Located in Taipei \& Wiley-VCH Verlag GmbH \& Co. KGaA,Weinheim.",

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TY - JOUR

T1 - Microwave-assisted synthesis of flower-like structure ε-MnO 2 as cathode for lithium ion batteries

AU - Li, Dan

AU - Du, Guodong

AU - Wang, Jieqiang

AU - Guo, Zaiping

AU - Chen, Zhixin

AU - Liu, Huakun

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2012/10

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N2 - Nanostructured flower-like ε-MnO 2 and α-MnO 2 nanowires were prepared by themicrowave-assisted hydrothermalmethod at 110 °C and 140 °C. The ε-nanoflowers are about 500 nm in size and are composed of petals about 100 nm in length, while the α-nanowires are 20-30 nm in diameter and about 1 μm in length. The ε-MnO 2 demonstrates higher initial discharge capacity, while the α-MnO 2 shows greater cycling stability in different voltage ranges. Both phases of MnO 2 show better cycling performance in ethylene carbonate (EC)/diethyl carbonate electrolyte (DEC) than in EC/dimethyl carbonate (DMC) electrolyte. The ε-MnO 2 sample delivered a discharge capacity of 116.2 mAh g -1 for up to 100 cycles, indicating that it is a promising cathode material for lithium ion batteries. © 2012 The Chemical Society Located in Taipei & Wiley-VCH Verlag GmbH & Co. KGaA,Weinheim.

AB - Nanostructured flower-like ε-MnO 2 and α-MnO 2 nanowires were prepared by themicrowave-assisted hydrothermalmethod at 110 °C and 140 °C. The ε-nanoflowers are about 500 nm in size and are composed of petals about 100 nm in length, while the α-nanowires are 20-30 nm in diameter and about 1 μm in length. The ε-MnO 2 demonstrates higher initial discharge capacity, while the α-MnO 2 shows greater cycling stability in different voltage ranges. Both phases of MnO 2 show better cycling performance in ethylene carbonate (EC)/diethyl carbonate electrolyte (DEC) than in EC/dimethyl carbonate (DMC) electrolyte. The ε-MnO 2 sample delivered a discharge capacity of 116.2 mAh g -1 for up to 100 cycles, indicating that it is a promising cathode material for lithium ion batteries. © 2012 The Chemical Society Located in Taipei & Wiley-VCH Verlag GmbH & Co. KGaA,Weinheim.

KW - Cathode

KW - Lithium ion batteries

KW - Manganese dioxide

KW - Microwave-assisted hydrothermal

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DO - 10.1002/jccs.201200193

M3 - RGC 21 - Publication in refereed journal

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