Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9760300 | Journal of Power Sources | 2005 | 5 Pages |
Abstract
The Si-C and Si-M-C (C, the disordered carbon) composites prepared from pyrolysis reaction and high-energy mechanical milling process have a significant enhancement in the electrochemical cycling stability over pure silicon. The introduction of the hard co-milling components (M, such as TiB2 and TiN) in the Si-C composite before pyrolysis reaction brings an improvement in the charging rate and cycling performance, but it leads to a slight loss in the reversible capacity. The full cell with the composite anodes and the LiCo0.2Ni0.8O2 cathode was fabricated to show large anode capacity over 600 mAh gâ1 within a potential range of 2.3-3.9 V that might result in a high energy density. The Si-based composites appear to be the promising anode candidates for Li-ion batteries.
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Authors
K. Hanai, Y. Liu, N. Imanishi, A. Hirano, M. Matsumura, T. Ichikawa, Y. Takeda,