skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Optimizing carbon/carbon supercapacitors in aqueous alkali sulfates electrolytes

Abstract

Neutral aqueous alkali sulfate has demonstrated great interests for developing environmentally friendly high voltage and high energy supercapacitors. This work focuses on systematically investigating the properties of symmetric carbon/carbon supercapacitors in neutral aqueous alkali sulfates. At room temperature, the largest power and energy density were obtained with K2SO4 electrolyte due to the smallest cation dimensions and highest electrical conductivity. At low temperature, aqueous Li2SO4 electrolyte presents the best performance due to the largest solubility, allowing a long-term stability at temperatures ranging between 20 °C and –10°C at a maximum voltage of 1.8 V. The excellent stability has been confirmed that capacitance retention achieves as high as 92% after 10,000 cycles. The capacitance variations with temperatures could essentially result from kinetic diffusion barrier, ion dimension changes and fewer pseudo-capacitance contributions under different temperatures. Here, this work highlights the selected virtues of different alkali sulfate electrolytes for enhanced supercapacitors.

Authors:
ORCiD logo [1]
  1. Univ. of Orleans, Orleans (France); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Fluid Interface Reactions, Structures and Transport Center (FIRST); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1505314
Alternate Identifier(s):
OSTI ID: 1530461
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Energy Chemistry
Additional Journal Information:
Journal Volume: 38; Journal ID: ISSN 2095-4956
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Supercapacitor; Alkali sulfates electrolyte; Carbon; Temperature dependence

Citation Formats

Gao, Qiang. Optimizing carbon/carbon supercapacitors in aqueous alkali sulfates electrolytes. United States: N. p., 2019. Web. https://doi.org/10.1016/j.jechem.2019.03.037.
Gao, Qiang. Optimizing carbon/carbon supercapacitors in aqueous alkali sulfates electrolytes. United States. https://doi.org/10.1016/j.jechem.2019.03.037
Gao, Qiang. Wed . "Optimizing carbon/carbon supercapacitors in aqueous alkali sulfates electrolytes". United States. https://doi.org/10.1016/j.jechem.2019.03.037. https://www.osti.gov/servlets/purl/1505314.
@article{osti_1505314,
title = {Optimizing carbon/carbon supercapacitors in aqueous alkali sulfates electrolytes},
author = {Gao, Qiang},
abstractNote = {Neutral aqueous alkali sulfate has demonstrated great interests for developing environmentally friendly high voltage and high energy supercapacitors. This work focuses on systematically investigating the properties of symmetric carbon/carbon supercapacitors in neutral aqueous alkali sulfates. At room temperature, the largest power and energy density were obtained with K2SO4 electrolyte due to the smallest cation dimensions and highest electrical conductivity. At low temperature, aqueous Li2SO4 electrolyte presents the best performance due to the largest solubility, allowing a long-term stability at temperatures ranging between 20 °C and –10°C at a maximum voltage of 1.8 V. The excellent stability has been confirmed that capacitance retention achieves as high as 92% after 10,000 cycles. The capacitance variations with temperatures could essentially result from kinetic diffusion barrier, ion dimension changes and fewer pseudo-capacitance contributions under different temperatures. Here, this work highlights the selected virtues of different alkali sulfate electrolytes for enhanced supercapacitors.},
doi = {10.1016/j.jechem.2019.03.037},
journal = {Journal of Energy Chemistry},
number = ,
volume = 38,
place = {United States},
year = {2019},
month = {4}
}

Journal Article:

Citation Metrics:
Cited by: 5 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Carbons and Electrolytes for Advanced Supercapacitors
journal, February 2014

  • Béguin, François; Presser, Volker; Balducci, Andrea
  • Advanced Materials, Vol. 26, Issue 14, p. 2219-2251
  • DOI: 10.1002/adma.201304137

Carbon/carbon supercapacitors
journal, March 2013


Around the thermodynamic limitations of supercapacitors operating in aqueous electrolytes
journal, July 2016


Review on supercapacitors: Technologies and materials
journal, May 2016

  • González, Ander; Goikolea, Eider; Barrena, Jon Andoni
  • Renewable and Sustainable Energy Reviews, Vol. 58
  • DOI: 10.1016/j.rser.2015.12.249

A review of electrolyte materials and compositions for electrochemical supercapacitors
journal, January 2015

  • Zhong, Cheng; Deng, Yida; Hu, Wenbin
  • Chemical Society Reviews, Vol. 44, Issue 21
  • DOI: 10.1039/C5CS00303B

Sustainable AC/AC hybrid electrochemical capacitors in aqueous electrolyte approaching the performance of organic systems
journal, September 2016


High voltage supercapacitor built with seaweed carbons in neutral aqueous electrolyte
journal, December 2010


A symmetric carbon/carbon supercapacitor operating at 1.6V by using a neutral aqueous solution
journal, October 2010


Carbon electrodes for capacitive technologies
journal, January 2019


Novel insight into neutral medium as electrolyte for high-voltage supercapacitors
journal, January 2012

  • Fic, Krzysztof; Lota, Grzegorz; Meller, Mikolaj
  • Energy Environ. Sci., Vol. 5, Issue 2
  • DOI: 10.1039/C1EE02262H

Exploring the large voltage range of carbon/carbon supercapacitors in aqueous lithium sulfate electrolyte
journal, January 2012

  • Gao, Qiang; Demarconnay, Laurent; Raymundo-Piñero, Encarnación
  • Energy & Environmental Science, Vol. 5, Issue 11
  • DOI: 10.1039/c2ee22284a

Ageing phenomena in high-voltage aqueous supercapacitors investigated by in situ gas analysis
journal, January 2016

  • He, Minglong; Fic, Krzysztof; Fra̧ckowiak, Elżbieta
  • Energy Environ. Sci., Vol. 9, Issue 2
  • DOI: 10.1039/C5EE02875B

Sustainable Carbon/Carbon Supercapacitors Operating Down to −40 °C in Aqueous Electrolyte Made with Cholinium Salt
journal, January 2018


Supercapacitors based on nanostructured carbon
journal, March 2013


New insights on electrochemical hydrogen storage in nanoporous carbons by in situ Raman spectroscopy
journal, April 2014


Adjustment of electrodes potential window in an asymmetric carbon/MnO2 supercapacitor
journal, January 2011


The graphene/lanthanum oxide nanocomposites as electrode materials of supercapacitors
journal, April 2019


In situ grown nickel selenide on graphene nanohybrid electrodes for high energy density asymmetric supercapacitors
journal, January 2018

  • Kirubasankar, Balakrishnan; Murugadoss, Vignesh; Lin, Jing
  • Nanoscale, Vol. 10, Issue 43
  • DOI: 10.1039/C8NR06345A

Extraordinary rate capability achieved by a 3D “skeleton/skin” carbon aerogel–polyaniline hybrid with vertically aligned pores
journal, January 2017

  • Liu, Mingkai; Li, Bomin; Zhou, Hang
  • Chemical Communications, Vol. 53, Issue 19
  • DOI: 10.1039/C7CC00121E

Electrochemical behaviour of hybrid devices based on Na2SO4 and Rb2SO4 neutral aqueous electrolytes and carbon electrodes within wide cell potential region
journal, November 2014

  • Jänes, Alar; Eskusson, Jaanus; Mattisen, Leonard
  • Journal of Solid State Electrochemistry, Vol. 19, Issue 3
  • DOI: 10.1007/s10008-014-2668-8

Strategies to Improve the Performance of Carbon/Carbon Capacitors in Salt Aqueous Electrolytes
journal, January 2015

  • Abbas, Q.; Ratajczak, P.; Babuchowska, P.
  • Journal of The Electrochemical Society, Vol. 162, Issue 5
  • DOI: 10.1149/2.0241505jes

Study on electrochemical performance of activated carbon in aqueous Li2SO4, Na2SO4 and K2SO4 electrolytes
journal, October 2008


Carbon coated textiles for flexible energy storage
journal, January 2011

  • Jost, Kristy; Perez, Carlos R.; McDonough, John K.
  • Energy & Environmental Science, Vol. 4, Issue 12
  • DOI: 10.1039/c1ee02421c

Enhancing capacitance of supercapacitor with both organic electrolyte and ionic liquid electrolyte on a biomass-derived carbon
journal, January 2017

  • Wang, Xuehang; Li, Yahao; Lou, Fengliu
  • RSC Advances, Vol. 7, Issue 38
  • DOI: 10.1039/C7RA01630A

High voltage AC/AC electrochemical capacitor operating at low temperature in salt aqueous electrolyte
journal, June 2016


An electrochemical in situ study of freezing and thawing of ionic liquids in carbon nanopores
journal, January 2014

  • Weingarth, Daniel; Drumm, Robert; Foelske-Schmitz, Annette
  • Phys. Chem. Chem. Phys., Vol. 16, Issue 39
  • DOI: 10.1039/C4CP02727B