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master's thesis
Optimiranje sastava elektroda s aktivnim ugljikom kao aktivnim materijalom za primjenu u superkondenzatorima
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2017. urn:nbn:hr:149:198136
Damjanović, Ana Marija
University of Zagreb
Faculty of Chemical Engineering and Technology

Institutional repository: Repository of Faculty of Chemical Engineering and Technology University of Zagreb

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Damjanović, A. M. (2017). Optimiranje sastava elektroda s aktivnim ugljikom kao aktivnim materijalom za primjenu u superkondenzatorima (Master's thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:198136

Damjanović, Ana Marija. "Optimiranje sastava elektroda s aktivnim ugljikom kao aktivnim materijalom za primjenu u superkondenzatorima." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2017. https://urn.nsk.hr/urn:nbn:hr:149:198136

Damjanović, Ana Marija. "Optimiranje sastava elektroda s aktivnim ugljikom kao aktivnim materijalom za primjenu u superkondenzatorima." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2017. https://urn.nsk.hr/urn:nbn:hr:149:198136

Damjanović, A. M. (2017). 'Optimiranje sastava elektroda s aktivnim ugljikom kao aktivnim materijalom za primjenu u superkondenzatorima', Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 25 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:198136

Damjanović AM. Optimiranje sastava elektroda s aktivnim ugljikom kao aktivnim materijalom za primjenu u superkondenzatorima [Master's thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2017 [cited 2024 November 25] Available at: https://urn.nsk.hr/urn:nbn:hr:149:198136

A. M. Damjanović, "Optimiranje sastava elektroda s aktivnim ugljikom kao aktivnim materijalom za primjenu u superkondenzatorima", Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2017. Available at: https://urn.nsk.hr/urn:nbn:hr:149:198136

Metadata
TitleOptimiranje sastava elektroda s aktivnim ugljikom kao aktivnim materijalom za primjenu u superkondenzatorima
Title (english)Optimization of the content of active carbon electrodes for supercapacitors
AuthorAna Marija Damjanović
MentorZoran Mandić (mentor)
Committee memberZoran Mandić (predsjednik povjerenstva)
Committee memberSuzana Sopčić (član povjerenstva)
Committee memberVilko Mandić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2017-11-29, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Chemical Engineering in Material Development
Abstract
Tema ovog diplomskog rada je optimiziranje sastava elektroda s aktivnim ugljikom kao aktivnim materijalom za primjenu u superkondenzatorima. Ovaj rad obuhvaća pripravu samog elektrodnog materijala od osnovnih sastavnih materijala kao što su: aktivni ugljik, acetilensko crnilo i vezivo i elektrokemijsko testiranje pripravljenih superkondenzatora. Optimizacija elektrodnog materijala provedena je tako što su pripravljene elektrode različitog sastava obzirom na udio osnovnih, prethodno navedenih komponenti. Osim promjene u sastavu elektrodnog materijala, također su provedena mjerenja s različitom debljinom elektrodnog materijala i separatora. Za testiranje svojstava pripravljenih superkondenzatora korištene su sljedeće elektrokemijske metode: ciklička voltametrija, metoda punjenja i pražnjenja superkondenzatora konstantom strujom i metoda četiri točke. Uz navedene metode, provedena su dodatna mjerenja pretražnim elektronskim mikroskopom za utvrđivanje same morfologije elektroda kao i Fourier transformirana infracrvena spektroskopija za utvrđivanje kemijskog sastava korištenih aktivnih ugljika. Rezultati dobiveni kroz provedena testiranja pokazuju da sam sastav elektrodnog materijala znatno ne utječe na izvedbu superkondenzatora. Međutim, pokazalo se kako superkondenzator sa dvostruko debljom negativnom elektrodom ima bolju izvedbu od superkondenzatora s obje tanje elektrode. Što se tiče separatora, dobiveni rezultati pokazali su jednaku izvedbu superkondenzatora bez obzira na debljinu istog.
Abstract (english)
The topic of this master thesis is the optimization of activated carbon based electrode material for supercapacitor applications. The thesis includes preparation of active electrode material ink that is made of activated carbon, carbon black and a binder, as well as the testing of electrochemical performance of prepared supercapacitors. The ink optimization was conducted in such a way that the basic component ratio was varied. Additional optimization was achieved with different electrode material and separator thicknesses. For electrochemical testing of supercapacitors the following methods were used: cyclic voltammetry, constant current charge/discharge and four-points method for conductivity determination. Apart from these methods, we used scanning electron microscope in order to better understand electrode material surface and Fourier transformed infrared spectroscopy to determine the chemical composition of the activated carbons that were used for the testing. The results showed that ratio of compounds used for electrode material does not have an effect on its performance. However, it is shown that the supercapacitor with a negative electrode, which was twice as thick as a positive electrode, has better performance compared to the supercapacitors with electrodes of the same thicknesses. The results obtained for the supercapacitors with different thicknesses of the separator show that the separator thickness did not have an effect on the ohmic resistance of supercapacitors.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:198136
Study programmeTitle: Applied Chemistry - Graduate study; specializations in: Environmental chemistry and green technologies, Advanced materials and technologies, Applied organic chemistry
Course: Advanced materials and technologies
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra primijenjene kemije (magistar/magistra primijenjene kemije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2020-05-07 10:42:51