A Silicon-Organic Hybrid Voltage Equalizer for Supercapacitor Balancing

Keshmiri, VahidLinköpings universitet,Informationskodning,Tekniska fakulteten (författare)

Funding Agencies|Swedish Foundation for Strategic Research-"Batterifonden" programme of the Swedish Energy Agency
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.

NATURVETENSKAP Data- och informationsvetenskap hsv//swe
NATURAL SCIENCES Computer and Information Sciences hsv//eng
TEKNIK OCH TEKNOLOGIER Elektroteknik och elektronik Annan elektroteknik och elektronik hsv//swe
ENGINEERING AND TECHNOLOGY Electrical Engineering, Electronic Engineering, Information Engineering Other Electrical Engineering, Electronic Engineering, Information Engineering hsv//eng
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

Westerberg, DavidRISE,Acreo,Acreo Swedish ICT AB, Sweden (författare)
Andersson Ersman, PeterRISE,ICT,Acreo Swedish ICT AB, Sweden(Swepub:ri)PeterAn@ri.se (författare)
Sandberg, MatsRISE,Acreo,Acreo Swedish ICT AB, Sweden(Swepub:ri)MatsSa@ri.se (författare)
Forchheimer, RobertLinköpings universitet,Informationskodning,Tekniska fakulteten(Swepub:liu)robfo65 (författare)
Tu, DeyuLinköpings universitet,Informationskodning,Tekniska fakulteten(Swepub:liu)deytu15 (författare)
Linköpings universitetInformationskodning (creator_code:org_t)

Ingår i:IEEE Journal on Emerging and Selected Topics in Circuits and Systems: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC7:1, s. 114-1222156-33572156-3365

Av författaren/redakt...: Keshmiri, Vahid; Westerberg, Davi ...; Andersson Ersman ...; Sandberg, Mats; Forchheimer, Rob ...; Tu, Deyu

Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Elektroteknik oc ...; och Annan elektrotek ...

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