Title
Battery type hybrid supercapacitor based on conducting polymers
Creator
Alguail, Alsadek Ali. 1977-
Copyright date
2018
Object Links
Select license
Autorstvo-Nekomercijalno-Bez prerade 3.0 Srbija (CC BY-NC-ND 3.0)
License description
Dozvoljavate samo preuzimanje i distribuciju dela, ako/dok se pravilno naznačava ime autora, bez ikakvih promena dela i bez prava komercijalnog korišćenja dela. Ova licenca je najstroža CC licenca. Osnovni opis Licence: http://creativecommons.org/licenses/by-nc-nd/3.0/rs/deed.sr_LATN. Sadržaj ugovora u celini: http://creativecommons.org/licenses/by-nc-nd/3.0/rs/legalcode.sr-Latn
Language
English
Cobiss-ID
Theses Type
Doktorska disertacija
description
Datum odbrane: 20.03.2018.
Other responsibilities
mentor
Grgur, Branimir. 1965-
član komisije
Gvozdenović, Milica, 1971-
član komisije
Jugović, Branimir.
Academic Expertise
Tehničko-tehnološke nauke
University
Univerzitet u Beogradu
Faculty
Tehnološko-metalurški fakultet
Alternative title
Hibridni superkondenzatori akumulatorskog tipa na bazi provodnih polimera
Publisher
[ A. A. Alguail]
Format
113 listova
description
Technological engineering - Chemical engineering / Tehnološko inženjerstvo - Hemijsko inženjerstvo
Abstract (en)
The electrochemically synthesized polypyrrole and lead-lead sulfate are examined as a potential electrodes for battery-type hybrid supercapacitors in acidic solution. Discharge in the specific current range of ∼0.6–2.27 A g−1 based on the active masses, can deliver capacity of 90–72 Ah kg−1, energy of 58–40 Wh kg−1 and power of 40–1350 W kg−1, with the specific capacitance of the cell in the range of 300–250 F g−1. The device exhibits battery-type behavior at low discharge rate, e.g. <0.5 A g−1, and supercapacitors-type behavior at a higher discharge rate. It is estimated that cell will lose 20% of initial capacitance after ∼500-600 cycles.
The electrochemically synthesized polyaniline and lead sulfate are investigated as a possible active material of the aqueous based hybrid asymmetric supercapacitors. The electrochemical characteristics of polyaniline (doping-dedoping reactions), as well as electrical characteristics (specific capacitance, capacity, energy, and power) of the PbSO4|PANI cell, are determined. The cell capacitance, ranging from 216 F g−1 to 230 F g−1 is determined. In the specific current range of 0.3–1.5 A g−1 based on the active masses, the specific energy decrease from 30 to 20 Wh kg−1, while specific power increased from 200 to ∼800 W kg−1. The specific capacity of the cell, slightly decreased from 47 Ah g−1 to 40 Ah g−1 by increasing the specific current. It is estimated that cell will lose 20% of initial capacitance after ∼550 cycles.
Based on the estimated specific energy and power, it is suggested that investigated cells could be classified as hydride asymmetric battery type supercapacitors оr “supercapattery” type of electrochemical power sources.
Abstract (sr)
Elektrohemijski sintetizovani polipirol i olovo-olovo sulfat ispitani su kao potencijalne elektrode za hibridne superkondenzatore akumulatora tipa u kiselom rastvoru. Pražnjenjem u strujnom opsegu od ~0,6-2,27 A g-1 na bazi aktivnih masa, određene su vrednosti specifični kapaciteti od 90-72 Ah kg-1, energija od 58-40 Wh kg-1 i snaga od 40-1350 W kg-1, sa specifičnom kapacitivnošću ćelije u opsegu od 300-250 F g-1. Sistem pokazuje ponašanje tipa akumulatora pri malim strujama pražnjenja, npr. <0,5 A g-1 i superkondenzatorsko ponašanje pri većom strujama pražnjenja. Procenjeno je da će ćelija izgubiti 20% početnog kapaciteta posle ~ 500-600 ciklusa punjenja i pražnjenja.
Elektrohemijski sintetizovani polianilin i olovo sulfat ispitani su kao mogući aktivni materijal hibridnih asimetričnih superkondenzatora. Određene su elektrohemijske karakteristike polianilina (reakcije dopovanja i dedopovanja), kao i električne karakteristike (specifična kapacitivnost, kapacitet, energija i snaga) ćelije. Određuene su kapacitivnosti ćelije, u opsegu od 216 F g-1 do 230 F g-1. Pri strujama pražnjenja u opsegu od 0.3-1.5 A g-1 na osnovu aktivnih masa, specifična energija se smanjuje sa 30 na 20 Wh kg-1, dok se specifična snaga povećana sa 200 na ~ 800 W kg-1. Specifični kapacitet ćelije, malo je smanjen sa 47 Ah g-1 na 40 Ah g-1. Procenjeno je da će ćelija izgubiti 20% početne kapacitivnosti nakon ~550 ciklusa.
Na osnovu procenjenih vrednosti specifične energije i snage, predloženo je da ispitane ćelije mogu biti klasifikovane kao asimetrični hibridni superkondenzatori akumulatorskog tipa ili a "superkapabaterijska" vrsta elektrohemijskih izvora energije.
Authors Key words
polianilin, polipirol, superkapabaterija, specifična energija, specifična snaga
Authors Key words
Polyaniline, Polypyrrole, Supercapattery, Specific energy, Specific power
Type
Tekst
Abstract (en)
The electrochemically synthesized polypyrrole and lead-lead sulfate are examined as a potential electrodes for battery-type hybrid supercapacitors in acidic solution. Discharge in the specific current range of ∼0.6–2.27 A g−1 based on the active masses, can deliver capacity of 90–72 Ah kg−1, energy of 58–40 Wh kg−1 and power of 40–1350 W kg−1, with the specific capacitance of the cell in the range of 300–250 F g−1. The device exhibits battery-type behavior at low discharge rate, e.g. <0.5 A g−1, and supercapacitors-type behavior at a higher discharge rate. It is estimated that cell will lose 20% of initial capacitance after ∼500-600 cycles.
The electrochemically synthesized polyaniline and lead sulfate are investigated as a possible active material of the aqueous based hybrid asymmetric supercapacitors. The electrochemical characteristics of polyaniline (doping-dedoping reactions), as well as electrical characteristics (specific capacitance, capacity, energy, and power) of the PbSO4|PANI cell, are determined. The cell capacitance, ranging from 216 F g−1 to 230 F g−1 is determined. In the specific current range of 0.3–1.5 A g−1 based on the active masses, the specific energy decrease from 30 to 20 Wh kg−1, while specific power increased from 200 to ∼800 W kg−1. The specific capacity of the cell, slightly decreased from 47 Ah g−1 to 40 Ah g−1 by increasing the specific current. It is estimated that cell will lose 20% of initial capacitance after ∼550 cycles.
Based on the estimated specific energy and power, it is suggested that investigated cells could be classified as hydride asymmetric battery type supercapacitors оr “supercapattery” type of electrochemical power sources.
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