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undergraduate thesis
Pregled mehanizama degradacija učinkovitosti litij-ionske baterije
Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2022. urn:nbn:hr:182:211011
Tomašić, Ivan
Josip Juraj Strossmayer University of Osijek
Department of Chemistry
Department of Analytical, Organic and Applied Chemistry

Cite this document

Tomašić, I. (2022). Pregled mehanizama degradacija učinkovitosti litij-ionske baterije (Undergraduate thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry. Retrieved from https://urn.nsk.hr/urn:nbn:hr:182:211011

Tomašić, Ivan. "Pregled mehanizama degradacija učinkovitosti litij-ionske baterije." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2022. https://urn.nsk.hr/urn:nbn:hr:182:211011

Tomašić, Ivan. "Pregled mehanizama degradacija učinkovitosti litij-ionske baterije." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2022. https://urn.nsk.hr/urn:nbn:hr:182:211011

Tomašić, I. (2022). 'Pregled mehanizama degradacija učinkovitosti litij-ionske baterije', Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, accessed 30 April 2024, https://urn.nsk.hr/urn:nbn:hr:182:211011

Tomašić I. Pregled mehanizama degradacija učinkovitosti litij-ionske baterije [Undergraduate thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry; 2022 [cited 2024 April 30] Available at: https://urn.nsk.hr/urn:nbn:hr:182:211011

I. Tomašić, "Pregled mehanizama degradacija učinkovitosti litij-ionske baterije", Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, Osijek, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:182:211011

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Metadata
TitlePregled mehanizama degradacija učinkovitosti litij-ionske baterije
Title (english)Overview of mechanisms of degradation of lithium-ion battery efficiency
AuthorIvan Tomašić
MentorAleksandar Sečenji (mentor)
GranterJosip Juraj Strossmayer University of Osijek
Department of Chemistry
(Department of Analytical, Organic and Applied Chemistry)
Osijek
Defense date and country2022-09-30, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Organic Chemistry
Abstract
Litij-ionska baterija (LIB) pripada skupini baterija koja se može puniti. Tijekom pražnjenja litijevi ioni kreću se od negativne elektrode ka pozitivnoj, a pri punjenu se događa suprotan proces. Litij interkalacijom prolazi u elektrode, za razliku od metalnog litija koji se primjenjuje u jednokratnim litijevim baterijama. Sastoje se od elektrolita, ugljične anode i katode na bazi kobalta. Procese degradacije uzrokuje: - Visoka i niska temperatura. - Visoko i nisko stanje napunjenosti. - Jaka struja. - Broj ciklusa punjenja i pražnjenja. - Općenito prolazak vremena. Neki od načina degradacije su: raspad elektrolita, raspad veziva, ljuštenje grafitne anode, pucanje čestica. Mehanizmi degradacije su: gubitak ciklirajućeg Li+, gubitak anodnog i katodnog materijala, smanjenje brzine interkalacije litija. Degradacije uzrokuju gubitak kapaciteta baterije, te povećanje električnog otpora u bateriji.
Abstract (english)
The lithium-ion battery (LIB) belongs to the group of rechargeable batteries. During discharge, lithium ions move from the negative electrode to the positive one, and the opposite process occurs during charging. Lithium passes into the electrodes by intercalation, in contrast to metallic lithium, which is used in disposable lithium batteries. They consist of an electrolyte, a carbon anode, and a cobalt-based cathode. Degradation processes are caused by: - High and low temperature. - High and low state of charge. - High current. - Number of charge and discharge cycles. - Generally, the passage of time. Some ways of degradation are the breakdown of the electrolyte, breakdown of the binder, exfoliation of the graphite anode, and cracking of the particles. Degradation mechanisms are loss of cycling Li+, loss of anodic and cathodic material, and reduced lithium intercalation rate. Degradations cause a loss of battery capacity and an increase in electrical resistance in the battery.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:182:211011
Study programmeTitle: Chemistry
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) kemije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) kemije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
RepositoryRepository of the Department of Chemistry, Osijek
Created on2022-11-02 12:25:24