Orthorhombic LiMnO2 nanorods as cathode materials for lithium-ion batteries: Synthesis and electrochemical properties

Hongyuan Zhao, Shanshan Liu, Xingquan Liu, Ming Tan, Zhenwei Wang, Yu Cai, Sridhar Komarneni

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

A simple solid-state process was developed to prepare the orthorhombic LiMnO2 nanorods by using Mn2O3 nanorods as a template, the latter was prepared via a thermal decomposition process. The obtained product showed good rod-shaped morphology and could be indexed to the orthorhombic LiMnO2 with a space group of Pmnm. Electrochemical tests showed that the LiMnO2 nanorods exhibited a discharge capacity of 183.2 mA h g-1 with high coulombic efficiency at 0.1 C between 2.0 and 4.3 V. After 35 cycles, the discharge capacity still reached up to 175.6 mA h g-1, which is a high capacity retention. Furthermore, the LiMnO2 nanorods presented excellent rate capability and small charge transfer resistance. Such high performance might be ascribed to the one-dimensional nanostructures with good crystallinity, which could effectively facilitate the charge and electron transport and enhance the electrode-filled ratio.

Original languageEnglish (US)
Pages (from-to)9319-9322
Number of pages4
JournalCeramics International
Volume42
Issue number7
DOIs
StatePublished - May 15 2016

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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