ArticleProceedings of the National Academy of Sciences of the United States of America2025
Convection can enhance the capacitive charging of porous electrodes.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Geometrically Induced Acceleration for Charging Dynamics of Electrical Double-Layers in a Nanopore with Sloped Walls.The journal of physical chemistry. C, Nanomaterials and interfaces · 2026Article
- Convection can enhance the capacitive charging of porous electrodes.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
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Authors and funding
4 authors.
Funding
Abstract
Charge transport in porous electrodes is foundational for modern energy storage technologies like supercapacitors, fuel cells, and batteries. Supercapacitors in particular rely solely on storing energy in charged pores. Here, we simulate the charging of a single electrolyte-filled pore using the modified Poisson-Nernst-Planck and Navier-Stokes equations. We find that electroconvection can substantially speed up the charging dynamics. We uncover the fundamental mechanism of electroconvection during pore charging through an analytical model that predicts the induced flow field and the electric current arising due to convection. Our findings suggest that convection is especially important in the limit of slender pores with thin electric double layers, and becomes significant beyond a certain threshold voltage that is an inherent electrolyte property.
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