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Published on: June 18, 2013
Hierarchical silicon nanowires-carbon textiles matrix as a binder-free anode for high-performance advanced
Bin Liu1, Xianfu Wang, Haitian Chen
1Wuhan National Laboratory for Optoelectronics (WNLO) and College of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), Wuhan 430074, P R China.
Abstract:
Toward the increasing demands of portable energy storage and electric vehicle applications, the widely used graphite anodes with significant drawbacks become more and more unsuitable. Herein, we report a novel scaffold of hierarchical silicon nanowires-carbon textiles anodes fabricated via a facile method. Further, complete lithium-ion batteries based on Si and commercial LiCoO2 materials were assembled to investigate their corresponding across-the-aboard performances, demonstrating their enhanced specific capacity (2950 mAh g(-1) at 0.2 C), good repeatability/rate capability (even >900 mAh g(-1) at high rate of 5 C), long cycling life, and excellent stability in various external conditions (curvature, temperature, and humidity). Above results light the way to principally replacing graphite anodes with silicon-based electrodes which was confirmed to have better comprehensive performances.
