ID 5269
File
Authors
Abstract
LaSi2 and LaSi2/Si composite as active materials for the negative electrode of lithium-ion battery were synthesized by mechanical alloying. Furthermore, thick-film electrodes prepared with a gas-deposition method by using these material powders, and their electrode performances were investigated. The LaSi2 GD-film electrode exhibited superb cycle stability, where more than 70 % of the initial capacity was maintained for a period of 1000 cycles, though the initial capacity was only about 40 mA h g-1. As for the LaSi2/Si composite electrodes, the original high discharge capacity of Si was retained even after several hundred cycles. The capacity after 300 cycles was 500 mA h g-1, which is larger than the theoretical capacity of graphite electrode practically used. Thus, we succeeded in developing the new composite electrode with both high discharge capacity of Si and good cyclability of LaSi2.
Publisher
IOP publiching
Content Type
Journal Article
Link
ISSN
1757-899X
Journal Title
IOP Conf. Series: Materials Science and Engineering
Current Journal Title
IOP Conf. Series: Materials Science and Engineering
Volume
1
Issue
1
Published Date
2009-02-10
Publisher-DOI
Text Version
Publisher
Rights
Published under licence in IOP Conf. Series: Materials Science and Engineering by IOP Publishing Ltd. CC-BY Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain at ribution to the author(s) and the title of the work, journal citation and DOI.where IOP Conf. Series: Materials Science and Engineering is one of:Journal of Physics: Conference SeriesIOP Conference Series: Materials Science and EngineeringIOP Conference Series: Earth and Environmental Science
Citation
IOP Conf. Series: Materials Science and Engineering. 2009, 1(1), 012030
Department
Faculty of Engineering/Graduate School of Engineering
Language
English