Li2MnSiO4 Nanorods-embedded Carbon Nanofibers for Lithium-ion Battery Electrodes
Journal Article
Kim, H. J. Song, J. C. Kim, M. Choi, C. Choi, M. A. Dar, C. W. Lee, S. Park, and D. W. . 2015
Publication Online URL:
Magazine \ Newspaper:
Electrochimica Acta
Volume Number:
180
Pages:
756–762
Publication 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.