20.500.12556/RUL-149551 Vpliv celuloze na staranje litijevih elektrod Effect of cellulose on the aging of lithium electrodes 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. 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. kovinski litij celulozni premaz elektrokemijska impedančna spektroskopija metallic lithium cellulose coating electrochemical impedance spectroscopy true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2023-09-07 11:27:03 2023-09-07 11:27:03 2023-09-14 12:16:43 0000-00-00 00:00:00 2023 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 22708 164438019 Rabzelj_Karmen_-_Vpliv_celuloze_na_staranje_litijevih_elektrod.pdf Rabzelj_Karmen_-_Vpliv_celuloze_na_staranje_litijevih_elektrod.pdf 1 A67A49AC0A44C2FD22E8DDE65805A1C0 6f5c3ac4bbca2e85cda8fa001a325a47c7c2edc4ef8c07d4edd6cc869552c063 b2e2c66f-4d60-11ee-9934-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=174035 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0