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Microwave-assisted synthesis of flower-like structure ε-MnO2 as cathode for lithium ion batteries

Journal Article


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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.

Publication Date


  • 2012

Citation


  • Li, D., Du, G., Wang, J., Guo, Z., Chen, Z. & Liu, H. K. (2012). Microwave-assisted synthesis of flower-like structure ε-MnO2 as cathode for lithium ion batteries. Journal of the Chinese Chemical Society, 59 (10), 1211-1215.

Scopus Eid


  • 2-s2.0-84867198250

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=8208&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/5276

Has Global Citation Frequency


Number Of Pages


  • 4

Start Page


  • 1211

End Page


  • 1215

Volume


  • 59

Issue


  • 10

Place Of Publication


  • Taiwan, Republic of China

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.

Publication Date


  • 2012

Citation


  • Li, D., Du, G., Wang, J., Guo, Z., Chen, Z. & Liu, H. K. (2012). Microwave-assisted synthesis of flower-like structure ε-MnO2 as cathode for lithium ion batteries. Journal of the Chinese Chemical Society, 59 (10), 1211-1215.

Scopus Eid


  • 2-s2.0-84867198250

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=8208&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/5276

Has Global Citation Frequency


Number Of Pages


  • 4

Start Page


  • 1211

End Page


  • 1215

Volume


  • 59

Issue


  • 10

Place Of Publication


  • Taiwan, Republic of China