Abstract
In situ contrast-matched neutron scattering was used to probe the electrolyte infiltration behavior of activated supercapacitor carbon electrodes using an aquoeus 1 M NaCl solution. It was found that only about 20% of the pore volume was infiltrated at chemical equilibrium. The partial infiltration can be attributed to the co-existence of hydrophilic and hydrophilic pores. The study suggests that for the achievement of optimal capacitance, supercapacitor electrodes should be evacuated before electrolyte infiltration.
| Original language | English |
|---|---|
| Pages (from-to) | 139-142 |
| Number of pages | 4 |
| Journal | Carbon |
| Volume | 136 |
| DOIs | |
| State | Published - Sep 2018 |
Funding
This research used resources at the Spallation Neutron Source, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory . This work was supported by the DOE Energy Frontier Research Center “Energy Frontier Research in Extreme Environments” (Efree) under grant No. DE-SC0001057 The authors thank Mr. M.J. Frost from SNS for the technical support. This research used resources at the Spallation Neutron Source, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory. This work was supported by the DOE Energy Frontier Research Center “Energy Frontier Research in Extreme Environments” (Efree) under grant No. DE-SC0001057 The authors thank Mr. M.J. Frost from SNS for the technical support. This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan ( http://energy.gov/downloads/doe-public-access-plan ).