Li2MnSiO4 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 journalArticlepeer-review

    25 Citations (Scopus)

    Abstract

    Minute Li2MnSiO4 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+ and a current rate of 33.3 mA g-1. 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

    Bibliographical note

    Funding Information:
    This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Ministry of Science, ICT, and Future Planning (2011-0030300) and by Korea Small and Medium Business Administration (S2230272). This work was also supported by the R&D Center for Valuable Recycling(Global-Top R&BD Program) of the Ministry of Environment (2014001170002).

    Publisher Copyright:
    © 2015 Elsevier Ltd.

    Keywords

    • LiMnSiO
    • carbon nanofiber
    • cathode
    • lithium-ion batteries
    • nanorods

    ASJC Scopus subject areas

    • General Chemical Engineering
    • Electrochemistry

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