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Title: | New three-dimensional porous electrode concept: vertically-aligned carbon nanotubes directly grown on embroidered copper structures |
Author: | Aguiló Aguayo, Noemí Amade Rovira, Roger Hussain, Shahzad Bertrán Serra, Enric Bechtold, Thomas |
Keywords: | Nanotubs Plasma (Gasos ionitzats) Elèctrodes Nanotubes Plasma (Ionized gases) Electrodes |
Issue Date: | 11-Dec-2017 |
Publisher: | MDPI |
Abstract: | New three-dimensional (3D) porous electrode concepts are required to overcome limitations in Li-ion batteries in terms of morphology (e.g., shapes, dimensions), mechanical stability (e.g., flexibility, high electroactive mass loadings), and electrochemical performance (e.g., low volumetric energy densities and rate capabilities). Here a new electrode concept is introduced based on the direct growth of vertically-aligned carbon nanotubes (VA-CNTs) on embroidered Cu current collectors. The direct growth of VA-CNTs was achieved by plasma-enhanced chemical vapor deposition (PECVD), and there was no application of any post-treatment or cleaning procedure. The electrochemical behavior of the as-grown VA-CNTs was analyzed by charge/discharge cycles at different specific currents and with electrochemical impedance spectroscopy (EIS) measurements. The results were compared with values found in the literature. The as-grown VA-CNTs exhibit higher specific capacities than graphite and pristine VA-CNTs found in the literature. This together with the possibilities that the Cu embroidered structures offer in terms of specific surface area, total surface area, and designs provide a breakthrough in new 3D electrode concept |
Note: | Reproducció del document publicat a: https://doi.org/10.3390/nano7120438 |
It is part of: | Nanomaterials, 2017, vol. 7, num. 12, p. 438 |
URI: | http://hdl.handle.net/2445/151380 |
Related resource: | https://doi.org/10.3390/nano7120438 |
ISSN: | 2079-4991 |
Appears in Collections: | Articles publicats en revistes (Institut de Nanociència i Nanotecnologia (IN2UB)) Articles publicats en revistes (Física Aplicada) |
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