Three-dimensional thin film for lithium-ion batteries and supercapacitors

Yang Yang, Zhiwei Peng, Gunuk Wang, Gedeng Ruan, Xiujun Fan, Lei Li, Huilong Fei, Robert H. Hauge, James M. Tour

Research output: Contribution to journalArticle

36 Citations (Scopus)

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 languageEnglish
Pages (from-to)7279-7287
Number of pages9
JournalACS Nano
Volume8
Issue number7
DOIs
Publication statusPublished - 2014 Jul 22
Externally publishedYes

Fingerprint

electrochemical capacitors
energy storage
Energy storage
Nanotubes
electric batteries
nanotubes
Carbon
lithium
Thin films
Electrodes
Sandwich structures
electrodes
sandwich structures
carbon
Microelectrodes
Phase boundaries
polarization (charge separation)
thin films
Electric space charge
Oxides

Keywords

  • heterogeneous structure
  • lithium-ion battery
  • multifunctional
  • nanotube
  • supercapacitor

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Yang, Y., Peng, Z., Wang, G., Ruan, G., Fan, X., Li, L., ... Tour, J. M. (2014). Three-dimensional thin film for lithium-ion batteries and supercapacitors. ACS Nano, 8(7), 7279-7287. https://doi.org/10.1021/nn502341x

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 journalArticle

Yang, Y, Peng, Z, Wang, G, Ruan, G, Fan, X, Li, L, Fei, H, Hauge, RH & Tour, JM 2014, 'Three-dimensional thin film for lithium-ion batteries and supercapacitors', ACS Nano, vol. 8, no. 7, pp. 7279-7287. https://doi.org/10.1021/nn502341x
Yang, Yang ; Peng, Zhiwei ; Wang, Gunuk ; Ruan, Gedeng ; Fan, Xiujun ; Li, Lei ; Fei, Huilong ; Hauge, Robert H. ; Tour, James M. / Three-dimensional thin film for lithium-ion batteries and supercapacitors. In: ACS Nano. 2014 ; Vol. 8, No. 7. pp. 7279-7287.
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