Probing the electrolyte infiltration behaviour of activated carbon supercapacitor electrodes by in situ neutron scattering using aqueous NaCl as electrolyte

Liu, Yiqun; Li, Chen; Liu, Cong; Chen, Yan; An, Ke; Landskron, Kai

doi:10.1016/j.carbon.2018.04.072

Title: Probing the electrolyte infiltration behaviour of activated carbon supercapacitor electrodes by in situ neutron scattering using aqueous NaCl as electrolyte

Journal Article · 24 April 2018 · Carbon

DOI: https://doi.org/10.1016/j.carbon.2018.04.072 · OSTI ID:1436046

Liu, Yiqun ^[1];

^[2]; Liu, Cong ^[1];

^[3];

^[3]; Landskron, Kai ^[1]

Lehigh Univ., Bethlehem, PA (United States)
Univ. of California-Riverside, Riverside, CA (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

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. As a result, the study suggests that for the achievement of optimal capacitance, supercapacitor electrodes should be evacuated before electrolyte infiltration.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Energy Frontier Research Centers (EFRC) (United States). Energy Frontier Research in Extreme Environments (EFree)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC05-00OR22725; SC0001057

OSTI ID:: 1436046

Alternate ID(s):: OSTI ID: 1548453

Journal Information:: Carbon, Vol. 136, Issue C; ISSN 0008-6223

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 16 works

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Electron regulation enabled selective lithium deposition for stable anodes of lithium-metal batteries Guo, Junling; Zhao, Shupeng; Yang, He Journal of Materials Chemistry A, Vol. 7, Issue 5 https://doi.org/10.1039/c8ta11193f	journal	January 2019