Asymmetric fiber supercapacitors based on a FeC2O4/FeOOH-CNT hybrid material.

Details

• Personal Author:
  Adusei PK ; Fang Y ; Gbordzoe S ; Hsieh Y-Y ; Johnson K ; Kanakaraj SN ; Khosravifar M ; Nichols M ; Shanov V ; Zhang G
• Description:
  The development of new flexible and lightweight electronics has increased the demand for compatible energy storage devices to power them. Carbon nanotube (CNT) fibers have long been known for their ability to be assembled into yarns, offering their integration into electronic devices. They are hindered, however, by their low intrinsic energy storage properties. Herein, we report a novel composite yarn, synthesized through solvothermal processes, that attained energy densities in the range between 0.17 µWh/cm2 and 3.06 µWh/cm2, and power densities between 0.26 mW/cm2 and 0.97 mW/cm2, when assembled in a supercapacitor with a PVDF-EMIMBF4 electrolyte. The created unique composition of iron oxalate + iron hydroxide + CNT as an anode worked well in synergy with the much-studied PANI + CNT cathode, resulting in a highly stable yarn energy storage device that maintained 96.76% of its energy density after 4000 cycles. This device showed no observable change in performance under stress/bend tests which makes it a viable candidate for powering wearable electronics. [Description provided by NIOSH]
• Subjects:
  Electrical Equipment And Supplies Occupational Health Particulate Matter Safety
• Keywords:
  Author Keywords: CNT Fibers; FeC2O4/FeOOH-CNT Hybrid Fiber; Solvothermal Processing; Fiber Supercapacitors Carbon Nanotubes; CNT; Fibers; Capacity Development; Electronic Devices; Wearable Technologies; Synthetic Materials;
• ISSN:
  2311-5629
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  62
• Volume:
  7
• Issue:
  3
• NIOSHTIC Number:
  nn:20065100
• Citation:
  C 2021 Sep; 7(3):62
• Contact Point Address:
  Vesselin Shanov, Department of Mechanical and Materials Engineering, University of Cincinnati, Cincinnati, OH 45221-0072, USA
• Email:
  vesselin.shanov@uc.edu
• CAS Registry Number:
  Carbon nanotubes (CAS RN 308068-56-6)
• Federal Fiscal Year:
  2021
• Performing Organization:
  University of Cincinnati
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  C: Journal of Carbon Research
• End Date:
  20260630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:d4240360e5d8bcfc6cb95f6ec69a66711b7e10606ec5963ea8caeca56af67091aacd2648c1b68db3970faa1ba3a492467c6c0a96f2fa45e3e2401e1718a8013f
• Download URL:
  https://stacks.cdc.gov/view/cdc/248613/cdc_248613_DS1.pdf
• File Type:
  [PDF - 5.21 MB ]