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Full Paper
Super-Aligned Carbon Nanotube Films as Current Collectors for Lightweight and Flexible Lithium Ion Batteries
Article first published online: 19 OCT 2012
DOI: 10.1002/adfm.201202412
Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Wang, K., Luo, S., Wu, Y., He, X., Zhao, F., Wang, J., Jiang, K. and Fan, S. (2013), Super-Aligned Carbon Nanotube Films as Current Collectors for Lightweight and Flexible Lithium Ion Batteries. Adv. Funct. Mater., 23: 846–853. doi: 10.1002/adfm.201202412
Publication History
- Issue published online: 11 FEB 2013
- Article first published online: 19 OCT 2012
- Manuscript Received: 23 AUG 2012
- Abstract
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Keywords:
- carbon nanotube films;
- current collectors;
- lightweight materials;
- flexible materials;
- lithium ion batteries
Abstract
Carbon nanotube (CNT) current collectors with excellent flexibility, extremely low density (0.04 mg cm−2), and tunable thickness are fabricated by cross-stacking continuous CNT films drawn from super-aligned CNT arrays. Compared with metal current collectors, better wetting, stronger adhesion, greater mechanical durability, and lower contact resistance are demonstrated at the electrode/CNT interface. Electrodes with CNT current collectors show improvements in cycling stability, rate capability, and gravimetric energy density over those with metal current collectors. These results suggest that CNT films can function as a promising type of current collector for lightweight and flexible lithium ion batteries with high energy density.