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A Silicon-Organic Hybrid Voltage Equalizer for Supercapacitor Balancing
Linköping University, Sweden.
RISE - Research Institutes of Sweden (2017-2019), ICT, Acreo.
RISE - Research Institutes of Sweden (2017-2019), ICT.ORCID-id: 0000-0002-4575-0193
RISE - Research Institutes of Sweden (2017-2019), ICT, Acreo.ORCID-id: 0000-0002-0631-3804
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2017 (engelsk)Inngår i: IEEE Journal on Emerging and Selected Topics in Circuits and Systems, ISSN 2156-3357, E-ISSN 2156-3365, Vol. 7, nr 1, s. 114-122, artikkel-id 7817802Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Cell voltage equalizers are an important part in electric energy storage systems comprising series-connected cells, for example, supercapacitors. Hybrid electronics with silicon chips and printed devices enables electronic systems with moderate performance and low cost. This paper presents a silicon-organic hybrid voltage equalizer to balance and protect series-connected supercapacitor cells during charging. Printed organic electrochemical transistors with conducting polymer poly(3,4-ethylenedioxythiophene): poly(styrene sulfonate) (PEDOT:PSS) are utilized to bypass excess current when the supercapacitor cells are fully charged to desired voltages. In this study, low-cost silicon microcontrollers (ATtiny85) are programmed to sense voltages across the supercapacitor cells and control the organic electrochemical transistors to bypass charging current when the voltages exceed 1 V. Experimental results show that the hybrid equalizer with the organic electrochemical transistors works in dual-mode, switched-transistor mode or constant-resistor mode, depending on the charging current applied (0.3-100 mA). With the voltage equalizer, capacitors are charged equally regardless of their capacitances. This work demonstrates a low-cost hybrid solution for supercapacitor balancing modules at large-scale packs.

sted, utgiver, år, opplag, sider
2017. Vol. 7, nr 1, s. 114-122, artikkel-id 7817802
Emneord [en]
Hybrid electronics, organic electrochemical transistors, printed electronics, supercapacitor balancing, voltage equalizer, Conducting polymers, Conductive plastics, Equalizers, Silicon, Styrene, Transistors, Charging current, Electric energies, Electronic systems, Hybrid solution, Poly(styrene sulfonate), Poly-3, 4-ethylenedioxythiophene, Series-connected, Capacitance
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Identifikatorer
URN: urn:nbn:se:ri:diva-31012DOI: 10.1109/JETCAS.2016.2612724Scopus ID: 2-s2.0-85009877621OAI: oai:DiVA.org:ri-31012DiVA, id: diva2:1138091
Tilgjengelig fra: 2017-09-04 Laget: 2017-09-04 Sist oppdatert: 2024-01-05bibliografisk kontrollert

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Andersson Ersman, PeterSandberg, Mats

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