magistrsko delo
Rok Pezdirc (Author), Robert Dominko (Mentor), Igor Plazl (Thesis defence commission member), Boštjan Genorio (Thesis defence commission member), Marjan Marinšek (Co-mentor)

Abstract

Z litijem bogati oksidi prehodnih kovin (LMR-TMO) so skupina katodnih materialov, ki se jih lahko uporablja v litij ionskih akumulatorjih. Zaradi večjega deleža litija in odsotnosti kobalta v strukturi materiala, predstavljajo LMR-TMO cenejšo in bolj zmogljivo alternativo katodnim materialom na trgu. Z magistrskim delom smo želeli uspešno uporabiti sintezni postopek, ki se ga uporablja za pridobivanje NMC katodnih materialov, za sintezo LMR-TMO materiala. Po uspešni sintezi NMC materialov, smo sintezno tehniko uporabili za pridobitev ciljnega materiala. Vzorce smo nato analizirali s pomočjo vrstične elektronske mikroskopije in rentgenske praškovne difrakcije. Sintetizirane materiale smo uporabili kot aktivni material v katodah. Sestavili smo laboratorijske akumulatorje ter jih podvrgli ciklom polnjenja in praznjenja. Z analizami smo ugotovili, da smo uspešno pridobili želene materiale, hkrati pa smo preučili kako se je material odrezal, ko smo ga uporabili v celicah.

Keywords

litij-ionski akumulatorji;katodni materiali;LMR-TMO;NMC;sinteza;magistrska dela;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL FKKT - Faculty of Chemistry and Chemical Technology
Publisher: [R. Pezdirc]
UDC: 621.355(043.2)
COBISS: 142830083 Link will open in a new window
Views: 23
Downloads: 9
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Other data

Secondary language: English
Secondary title: Synthesis of Lithium Rich Transition Metal Oxides
Secondary abstract: Lithium rich transition metal oxides (LMR-TMO) are a group of cathode materials, which can be used in Lithium-ion batteries. Higher lithium percentage and the lack of cobalt in the structure of the material, makes LMR-TMO cheaper and more capable alternative for cathode materials in use. In this master’s thesis, we used a modified synthesis method, which is used to attain NMC cathode materials, to produce LMR-TMO materials. After the successful acquisition of NMC dust, we used the method for the synthesis of the desired material. Samples were analysed by scanning electron microscopy and x-ray powder diffraction. Synthesised materials were used as active material in cathodes, put in battery cells, and subjected to charging cycles. By doing before mentioned analyses, we concluded, that we successfully acquired LMR-TMOs and proved they can be used in battery cells.
Secondary keywords: lithium-ion batteries;LMR-TMO;NMC;synthesis;Oksidi;Litijeve baterije;Univerzitetna in visokošolska dela;
Type (COBISS): Master's thesis/paper
Study programme: 1000376
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za kemijo in kemijsko tehnologijo, smer Kemijsko inženirstvo
Pages: 43 str.
ID: 18051267