Li<inf>2</inf>MnSiO<inf>4</inf> nanorods-embedded carbon nanofibers for lithium-ion battery electrodes

Hee Jo Song, Jae Chan Kim, Mingu Choi, Changhoon Choi, Mushtaq Ahmad Dar, Chan Woo Lee, Sangbaek Park, Dong-Wan Kim

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Minute Li<inf>2</inf>MnSiO<inf>4</inf> nanorods embedded in carbon nanofibers (LMS/CNFs) are prepared via an ethanol-based solvothermal process, and then by electrospinning and subsequent carbonization processes. The LMS nanorods (NRs) have lengths and widths of 15-20 nm and 5 nm, respectively, and grow lengthwise, i.e., along the [010] direction, which facilitates Li-ion transport in the LMS during charging/discharging. In addition, these LMS NRs are well incorporated in the electrospun LMS/CNFs after carbonization. The LMS/CNFs exhibit an excellent cycling stability with a capacity retention of 96% for up to 150 cycles at voltages of 1.5-4.75 V vs. Li/Li<sup>+</sup> and a current rate of 33.3 mA g<sup>-1</sup>. The cycling stability of the LMS/CNFs results from the nano-architecture formed between the LMS NRs and the CNFs.

Original languageEnglish
Article number25629
Pages (from-to)756-762
Number of pages7
JournalElectrochimica Acta
Volume180
DOIs
Publication statusPublished - 2015 Oct 20

Keywords

  • carbon nanofiber
  • cathode
  • Li<inf>2</inf>MnSiO<inf>4</inf>
  • lithium-ion batteries
  • nanorods

ASJC Scopus subject areas

  • Electrochemistry
  • Chemical Engineering(all)

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