Assistance Current Effect for Prevention of Voltage Reversal in Stacked Microbial Fuel Cell Systems

Bongkyu Kim, Byung Geun Lee, Byung Hong Kim, In Seop Chang

    Research output: Contribution to journalArticle

    19 Citations (Scopus)

    Abstract

    Herein, an assistance current is suggested as a new approach to prevent voltage reversal in series-connected microbial fuel cells (MFCs). This approach can be used to revive reversed MFCs, as a supporting assistance current is applied through an assistance anode when voltage reversal occurs. However, when the assistance current is applied without control over the assistance current, voltage reversal is regenerated. Therefore, to control the assistance current, the suggested approach is complemented by the application of variable resistors between the anode and assistance electrode. As a result, the regenerated voltage reversal is restored and all voltages of MFC units in the stacked MFC remain positive. Thus, it is expected that this approach could resolve voltage reversal that occurs in series-connected MFCs, and thus increase the applicability of MFC technology to the production of practically usable electricity, with potential for extension to large-scale MFCs.

    Original languageEnglish
    Pages (from-to)755-760
    Number of pages6
    JournalChemElectroChem
    Volume2
    Issue number5
    DOIs
    Publication statusPublished - 13 May 2015

    Fingerprint

    Microbial fuel cells
    Electric potential
    Anodes
    Resistors
    Electricity
    Electrodes

    Keywords

    • Assistance electrode
    • Electrochemistry
    • Fuel cells
    • Series connection
    • Voltage reversal

    ASJC Scopus subject areas

    • Electrochemistry
    • Catalysis

    Cite this

    Assistance Current Effect for Prevention of Voltage Reversal in Stacked Microbial Fuel Cell Systems. / Kim, Bongkyu; Lee, Byung Geun; Kim, Byung Hong; Chang, In Seop.

    In: ChemElectroChem, Vol. 2, No. 5, 13.05.2015, p. 755-760.

    Research output: Contribution to journalArticle

    Kim, Bongkyu ; Lee, Byung Geun ; Kim, Byung Hong ; Chang, In Seop. / Assistance Current Effect for Prevention of Voltage Reversal in Stacked Microbial Fuel Cell Systems. In: ChemElectroChem. 2015 ; Vol. 2, No. 5. pp. 755-760.
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