Synthesis and electrochemical properties of Li0.33MnO 2 nanorods as positive electrode material for 3 V lithium batteries

Mok Hwa Kim, Kwang Bum Kim, Sun Min Park, Chul Tae Lee, Kwang Chul Roh

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In this study, one-dimensional Li0.33MnO2 nanorods were synthesized by a solid state reaction using γ-MnO2 as a precursor. γ-MnO2 was prepared under different reaction times by a redox process. The HR-TEM results showed that the diameter and length of the Li0.33MnO2 nanorods are 5-20 nm and about 200 nm, respectively. The Li0.33MnO2 nanorods delivered a discharge capacity of 157 mA h g-1 at 1 C, and retained 97% of their initial capacity over 30 cycles. Good rate performance was also observed, with discharge capacities of 201 and 133 mA h g-1 at 0.1 C and 2 C, respectively. The morphology of the nanorods could increase their electrochemical properties, resulting in higher capacity and rate performance.

Original languageEnglish
Pages (from-to)6199-6202
Number of pages4
JournalJournal of Nanoscience and Nanotechnology
Volume13
Issue number9
DOIs
Publication statusPublished - 2013 Sep 1

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Lithium batteries
lithium batteries
electrode materials
Nanorods
Electrochemical properties
nanorods
Electrodes
synthesis
Solid state reactions
reaction time
Transmission electron microscopy
solid state
transmission electron microscopy
cycles

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

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title = "Synthesis and electrochemical properties of Li0.33MnO 2 nanorods as positive electrode material for 3 V lithium batteries",
abstract = "In this study, one-dimensional Li0.33MnO2 nanorods were synthesized by a solid state reaction using γ-MnO2 as a precursor. γ-MnO2 was prepared under different reaction times by a redox process. The HR-TEM results showed that the diameter and length of the Li0.33MnO2 nanorods are 5-20 nm and about 200 nm, respectively. The Li0.33MnO2 nanorods delivered a discharge capacity of 157 mA h g-1 at 1 C, and retained 97{\%} of their initial capacity over 30 cycles. Good rate performance was also observed, with discharge capacities of 201 and 133 mA h g-1 at 0.1 C and 2 C, respectively. The morphology of the nanorods could increase their electrochemical properties, resulting in higher capacity and rate performance.",
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Synthesis and electrochemical properties of Li0.33MnO 2 nanorods as positive electrode material for 3 V lithium batteries. / Kim, Mok Hwa; Kim, Kwang Bum; Park, Sun Min; Lee, Chul Tae; Roh, Kwang Chul.

In: Journal of Nanoscience and Nanotechnology, Vol. 13, No. 9, 01.09.2013, p. 6199-6202.

Research output: Contribution to journalArticle

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AU - Kim, Mok Hwa

AU - Kim, Kwang Bum

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AU - Roh, Kwang Chul

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