Printed supercapacitors on paperboard substrate

Jari Keskinen (Corresponding Author), Eino Sivonen, Salme Jussila, Mikael Bergelin, Max Johansson, Anu Vaari, Maria Smolander

    Research output: Contribution to journalArticleScientificpeer-review

    29 Citations (Scopus)

    Abstract

    Printed supercapacitors were prepared to be applied as a part of a hybrid power source in printed electronics applications. The use of non-toxic materials was preferred. The supercapacitor structure consisting of current collectors and activated carbon electrodes was applied on paperboard substrate using silver, graphite and activated carbon inks. Aqueous electrolytes with NaCl salt limit the maximum potential to about 1.2 V but are environmentally friendly and provide low equivalent series resistance (ESR). The capacitance values of our printed supercapacitors were typically 0.1–0.5 F. With 2 cm2 geometrical active area the ESR was below 1 Ω which is acceptable for 50 mA current output. The efficiency with 50 mA charge and discharge current was typically about 90% and with 10 mA about 95%.
    Original languageEnglish
    Pages (from-to)302-306
    Number of pages4
    JournalElectrochimica Acta
    Volume85
    DOIs
    Publication statusPublished - 2012
    MoE publication typeA1 Journal article-refereed

    Keywords

    • Supercapacitor
    • electrical double layer capacitor
    • printed power source
    • printed electronics

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