Miniaturized concentration cells for small-scale energy harvesting based on reverse electrodialysis

Ramin Banan Sadeghian, Oxana Pantchenko, Daniel Tate, Ali Shakouri

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    14 Citations (Scopus)

    Abstract

    We describe experimental and theoretical results that demonstrate the feasibility of power generation using concentration cells based on ionic concentration gradients and reverse electrodialysis. A peak power density of 0.2 (0.7) W cm-2 and a maximum energy density of 0.4 (0.4) mJ cm -3 delivered in 3 h to a 2 (5) k resistor were recorded using a microfiltration (anion exchange) membrane, respectively. A comprehensive model is developed to predict the evolution of the output voltage with time in relation to the solute concentration in each cell and derive the power density and efficiency limits.

    Original languageEnglish
    Article number173702
    JournalApplied Physics Letters
    Volume99
    Issue number17
    DOIs
    Publication statusPublished - 2011 Oct 24

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

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