Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5459866 | Journal of Alloys and Compounds | 2017 | 7 Pages |
Abstract
Flexible nano-felts are prepared from electrospun carbon nanofibers (CNFs) embedded with V2O3 nanoparticles (V2O3/CNF) and directly applied as self-supported electrodes for high-performance lithium ion batteries (LIBs). Uniform V2O3 nanoparticles are well dispersed and/or embedded into each CNF with desirable electrical conductivity. Thus, a three-dimensional open structure is formed, which provides a highly conductive pathway for rapid charge-transfer reactions, greatly improving the surface active sites of V2O3 for fast lithiation/delithiation of Li+ ions. The flexible V2O3/CNF composite membrane electrode exhibits a synergistically improved electrochemical performance having a remarkable specific capacity of 500 mAh gâ1 at 100 mA gâ1, a capable rate capability of 100 mAh gâ1 even at a very high current density of 5000 mA gâ1, and excellent cycling stability after 5000 cycles, indicating it would be suitable for energy-related applications, particularly as binder-free and flexible LIB electrodes.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Shuang Gao, Dong Zhang, Kai Zhu, Joel A. Tang, Zhongmin Gao, Yingjin Wei, Gang Chen, Yu Gao,