Display options
Cite
Khani H, Dowell TJ, Wipf DO. Modifying Current Collectors to Produce High Volumetric Energy Density and Power Density Storage Devices. ACS Appl Mater Interfaces. 2018;10(25):21262-21280doi: 10.1021/acsami.8b03606.
Khani, H., Dowell, T. J., & Wipf, D. O. (2018). Modifying Current Collectors to Produce High Volumetric Energy Density and Power Density Storage Devices. ACS applied materials & interfaces, 10(25), 21262-21280. https://doi.org/10.1021/acsami.8b03606
Khani, Hadi, et al. "Modifying Current Collectors to Produce High Volumetric Energy Density and Power Density Storage Devices." ACS applied materials & interfaces vol. 10,25 (2018): 21262-21280. doi: https://doi.org/10.1021/acsami.8b03606
Khani H, Dowell TJ, Wipf DO. Modifying Current Collectors to Produce High Volumetric Energy Density and Power Density Storage Devices. ACS Appl Mater Interfaces. 2018 Jun 27;10(25):21262-21280. doi: 10.1021/acsami.8b03606. Epub 2018 Jun 13. PMID: 29863835.
Copy Download .nbib Format: NLM
Share it on

ACS Appl Mater Interfaces. 2018 Jun 27;10(25):21262-21280. doi: 10.1021/acsami.8b03606. Epub 2018 Jun 13.

Modifying Current Collectors to Produce High Volumetric Energy Density and Power Density Storage Devices.

ACS applied materials & interfaces

Hadi Khani, Timothy J Dowell, David O Wipf

Affiliations

  1. Materials Science and Engineering Program and Texas Materials Institute , The University of Texas at Austin , Austin , Texas 78712 , United States.
  2. Department of Chemistry , Mississippi State University , Mississippi State , Mississippi 39762 , United States.

PMID: 29863835 DOI: 10.1021/acsami.8b03606

Abstract

We develop zirconium-templated NiO/NiOOH nanosheets on nickel foam and polypyrrole-embedded in exfoliated carbon fiber cloth as complementary electrodes for an asymmetric battery-type supercapacitor device. We achieve high volumetric energy and power density by the modification of commercially available current collectors (CCs). The modified CCs provide the source of active material, actively participate in the charge storage process, provide a larger surface area for active material loading, need no additional binders or conductive additives, and retain the ability to act as the CC. Nickel foam (NF) CCs are modified by use of a soft-templating/solvothermal treatment to generate NiO/NiOOH nanosheets, where the NF is the source of Ni for the synthesis. Carbon-fiber cloth (CFC) CCs are modified by an electrochemical oxidation/reduction process to generate exfoliated core-shell structures (ECFC). Electropolymerization of pyrrole into the shell structure produces polypyrrole embedded in exfoliated core-shell material (PPy@rECFC). Battery-type supercapacitor devices are produced with NiO/NiOOH@NF and PPy@rECFC as positive and negative electrodes, respectively, to demonstrate the utility of this approach. Volumetric energy densities for the full-cell device are in the range of 2.60-4.12 mWh cm

Keywords: battery; exfoliated carbon fiber; nickel oxide; polypyrrole; supercapacitor; volumetric energy density; zirconium

Publication Types