Journal article
High-energy density nanofiber-based solid-state supercapacitors
Journal of materials chemistry. A, Materials for energy and sustainability, v 4(1)
01 Jan 2016
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
We have developed binder-free solid-state electric double layer supercapacitors using freestanding porous carbon nanofiber electrodes fabricated using electrospinning and silica-based ionic liquid gel electrolytes. To ensure close electrode/electrolyte contact and efficient transport of ions for high power operation, we fabricated our electrodes by uniformly filling freestanding samples of porous carbon nanofiber mats with a blend of silica sol-gel precursor and ionic liquid electrolyte, which were then appropriately dried/gelled to form all-solid supercapacitors. Two different carbon nanofiber samples have been investigated with high specific surface areas of 1218 m(2) g(-1) and 2282 m(2) g(-1). The resulting solid-state supercapacitor can operate in a large voltage window of 3.5 V. We achieved specific capacitance (C-sp) and specific energy (E-cell, based on the mass of the two electrodes) of up to 144 F g(-1) and 61 W h kg(-1) respectively, rivaling that of lead-acid batteries, with a high active material (carbon only) loading of 3-5 mg cm(-2).
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Details
- Title
- High-energy density nanofiber-based solid-state supercapacitors
- Creators
- Daniel W. Lawrence - Drexel UniversityChau Tran - Drexel UniversityArun T. Mallajoysula - Los Alamos National LaboratoryStephen K. Doorn - Los Alamos National LaboratoryAditya Mohite - Los Alamos National LaboratoryGautam Gupta - Los Alamos National LaboratoryVibha Kalra - Drexel University
- Publication Details
- Journal of materials chemistry. A, Materials for energy and sustainability, v 4(1)
- Publisher
- Royal Soc Chemistry
- Number of pages
- 7
- Grant note
- CBET-1150528; CBET-1236466 / National Science Foundation; National Science Foundation (NSF) Los Alamos National Lab LDRD program; United States Department of Energy (DOE); Los Alamos National Laboratory
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Web of Science ID
- WOS:000366825300015
- Scopus ID
- 2-s2.0-84950318074
- Other Identifier
- 991019167422904721
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InCites Highlights
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Chemistry, Physical
- Energy & Fuels
- Materials Science, Multidisciplinary