20.500.12556/RUL-136617 Computationally efficient quasi-3D model of a secondary electrode particle for enhanced prediction capability of the porous electrode model Models of Li-ion batteries addressing a particular scale—from atomistic to continuum—have reached a certain level of maturity. Meanwhile, consistent multi-scale modelling approaches are still in their infancy despite their large potential to boost the accuracy and prediction capability of Li-ion battery models. As an answer to this challenge, the paper presents an advanced quasi-3D model of the active electrode material that tackles one of the main deficiencies of the porous-electrode theory (PET) based models which arises from a poor representation of the electrode topology. It is hypothesised that there exists a quasi-3D modelling representation of the active electrode material that adequately virtually replicates intra primary particle Li-distribution and features significantly shorter computational times compared to models featuring a fully 3D meshed electrode topology, which enables its full integration into the porous electrode model. An advanced quasi-3D model is constructed by the integration of the concentration and the chemical potential in each primary particle across its volume and by the introduction of the permeability parameter at the interfaces. Besides compatibility with PET and acceptable computational times, the model also exhibits results that are in good agreement with measured lithium concentration profiles inside secondary particles published in literature. Li-ion batteries electrode materials active particles quazi 3D model porous electrode model litij ionske baterije elektrodni materiali aktivni delci kvazi 3D model model porozne elektrode true false true Angleški jezik Slovenski jezik Članek v reviji 2022-05-12 13:12:44 2022-05-12 13:12:46 2022-09-15 04:14:04 0000-00-00 00:00:00 2022 0 0 14 str. no. 4, art. 040522 Vol. 169 Apr. 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2022-04-14 621.4:621.3 1945-7111 10.1149/ 1945-7111/ac6323 107497987 Zelic,_Katrasnik_-_Computationally_Efficient_Quasi-3D_Model_of_a_Secondary_Electrode.pdf Zelic,_Katrasnik_-_Computationally_Efficient_Quasi-3D_Model_of_a_Secondary_Electrode.pdf 1 6ED25A1CFF5F33DEAC0BE855B9AF1C62 2fd42f17c67b22ad506998855bbac19c8554e007d34a14b10a405e4770464ae6 133e32ba-d1e5-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=156343 https://iopscience.iop.org/article/10.1149/1945-7111/ac6323 1 5885a3b3-d1e4-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=156337 Fakulteta za strojništvo 0 0 0