Abstract
Three-dimensional heterogeneously nanostructured thin-film electrodes were fabricated by using Ta2O5 nanotubes as a framework to support carbon-onion-coated Fe2O3 nanoparticles along the surface of the nanotubes. Carbon onion layers function as microelectrodes to separate the two different metal oxides and form a nanoscale 3-D sandwich structure. In this way, space-charge layers were formed at the phase boundaries, and it provides additional energy storage by charge separation. These 3-D nanostructured thin films deliver both excellent Li-ion battery properties (stabilized at 800 mAh cm-3) and supercapacitor (up to 18.2 mF cm-2) performance owing to the synergistic effects of the heterogeneous structure. Thus, Li-ion batteries and supercapacitors are successfully assembled into the same electrode, which is promising for next generation hybrid energy storage and delivery devices.
| Original language | English |
|---|---|
| Pages (from-to) | 7279-7287 |
| Number of pages | 9 |
| Journal | ACS Nano |
| Volume | 8 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 2014 Jul 22 |
| Externally published | Yes |
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Keywords
- heterogeneous structure
- lithium-ion battery
- multifunctional
- nanotube
- supercapacitor
ASJC Scopus subject areas
- Materials Science(all)
- Engineering(all)
- Physics and Astronomy(all)
Cite this
Three-dimensional thin film for lithium-ion batteries and supercapacitors. / Yang, Yang; Peng, Zhiwei; Wang, Gunuk; Ruan, Gedeng; Fan, Xiujun; Li, Lei; Fei, Huilong; Hauge, Robert H.; Tour, James M.
In: ACS Nano, Vol. 8, No. 7, 22.07.2014, p. 7279-7287.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Three-dimensional thin film for lithium-ion batteries and supercapacitors
AU - Yang, Yang
AU - Peng, Zhiwei
AU - Wang, Gunuk
AU - Ruan, Gedeng
AU - Fan, Xiujun
AU - Li, Lei
AU - Fei, Huilong
AU - Hauge, Robert H.
AU - Tour, James M.
PY - 2014/7/22
Y1 - 2014/7/22
N2 - Three-dimensional heterogeneously nanostructured thin-film electrodes were fabricated by using Ta2O5 nanotubes as a framework to support carbon-onion-coated Fe2O3 nanoparticles along the surface of the nanotubes. Carbon onion layers function as microelectrodes to separate the two different metal oxides and form a nanoscale 3-D sandwich structure. In this way, space-charge layers were formed at the phase boundaries, and it provides additional energy storage by charge separation. These 3-D nanostructured thin films deliver both excellent Li-ion battery properties (stabilized at 800 mAh cm-3) and supercapacitor (up to 18.2 mF cm-2) performance owing to the synergistic effects of the heterogeneous structure. Thus, Li-ion batteries and supercapacitors are successfully assembled into the same electrode, which is promising for next generation hybrid energy storage and delivery devices.
AB - Three-dimensional heterogeneously nanostructured thin-film electrodes were fabricated by using Ta2O5 nanotubes as a framework to support carbon-onion-coated Fe2O3 nanoparticles along the surface of the nanotubes. Carbon onion layers function as microelectrodes to separate the two different metal oxides and form a nanoscale 3-D sandwich structure. In this way, space-charge layers were formed at the phase boundaries, and it provides additional energy storage by charge separation. These 3-D nanostructured thin films deliver both excellent Li-ion battery properties (stabilized at 800 mAh cm-3) and supercapacitor (up to 18.2 mF cm-2) performance owing to the synergistic effects of the heterogeneous structure. Thus, Li-ion batteries and supercapacitors are successfully assembled into the same electrode, which is promising for next generation hybrid energy storage and delivery devices.
KW - heterogeneous structure
KW - lithium-ion battery
KW - multifunctional
KW - nanotube
KW - supercapacitor
UR - http://www.scopus.com/inward/record.url?scp=84904728970&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84904728970&partnerID=8YFLogxK
U2 - 10.1021/nn502341x
DO - 10.1021/nn502341x
M3 - Article
AN - SCOPUS:84904728970
VL - 8
SP - 7279
EP - 7287
JO - ACS Nano
JF - ACS Nano
SN - 1936-0851
IS - 7
ER -