diplomsko delo
Karmen Rabzelj (Author), Miran Gaberšček (Mentor)

Abstract

Kovinski litij je odličen material za anodo v akumulatorjih zaradi nizkega elektrokemijskega potenciala in visoke teoretične kapacitete. Zaradi svoje reaktivnosti in rasti dendritov, kovinski litij še vedno ni primeren za uporabo v komercialnih akumulatorjih. Eden izmed učinkovitejših načinov zaščite elektrod je tanek premaz iz derivata celuloze. V sklopu diplomske naloge smo z elektrokemijsko impedančno spektroskopijo ugotavljali, kako tak premaz vpliva na staranje litijevih elektrod pri povišani temperaturi. Celice smo starali 1, 3 in 5 dni pri 40 °C, 50 °C in 60 °C, ter jim izmerili impedančne spektre.

Keywords

kovinski litij;litij-ionski akumulatorji;medfaza trdnega elektrolita;celulozni premaz;elektrokemijska impedančna spektroskopija;diplomske naloge;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL FKKT - Faculty of Chemistry and Chemical Technology
Publisher: [K. Rabzelj]
UDC: 621.355(043.2)
COBISS: 164438019 Link will open in a new window
Views: 11
Downloads: 2
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Other data

Secondary language: English
Secondary title: Effect of cellulose on the aging of lithium electrodes
Secondary abstract: Lithium metal is an excellent material for the anode in batteries, due to its low electrochemical potential and high theoretical capacity. Due to its reactivity and dendrite growth, lithium metal is still not suitable for use in commercial batteries. One of the more effective ways to protect electrodes is a thin coating based on a cellulose derivate. As part of the thesis work thesis, we used electrochemical impedance spectroscopy to determine how such coating affects the aging of lithium electrodes. The cells were aged for 1, 3 and 5 days at 40 °C, 50 °C and 60 °C, then their impedance spectra were measured.
Secondary keywords: metallic lithium;cellulose coating;electrochemical impedance spectroscopy;Litijeve baterije;Univerzitetna in visokošolska dela;
Type (COBISS): Bachelor thesis/paper
Study programme: 1000374
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za kemijo in kemijsko tehnologijo, VSŠ Kemijska tehnologija
Pages: 37 str.
ID: 19908991