Faculty of Mechanical Engineering, Lj. (FSLJ)
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Multi-scale modelling of Lithium-ion batteries : from transport phenomena to the outbreak of thermal runawayKatrašnik, Tomaž ; Mele, Igor ; Zelič, KlemenMulti-scale and multi-domain mathematical models capable of modelling main electrochemical reactions, side reactions and heat generation can reduce the time and cost of lithium-ion battery ... development and deployment, since these processes decisively influence performance, durability and safety of batteries. Experimental evidences clearly indicate the importance of the interplay between electric and thermal boundary conditions, cell design and applied materials, side reactions as well as safety implications of batteries, which are not yet captured to a sufficient level by simulations models. As an answer to this challenge, the paper presents an advanced multi-scale battery modelling framework that can be seamlessly integrated into multi-domain models. The key hypothesis is that nanoscopic transport phenomena and resulting heat generation decisively influence the entire chain of mechanisms that can lead to the outbreak of the thermal runaway. This is confirmed by developing a multi-scale battery modelling framework that is based on the continuous modelling approach featuring more consistent virtual representation of the electrode topology and incorporating the coupled chain of models for heat generations and side reactions. As a result, the battery modelling framework intuitively yet insightfully elucidates the entire chain of phenomena from electric and thermal boundary conditions, over cell design and properties of applied materials to solid electrolyte interphase growth, its decomposition and subsequent side reactions at the anode, cathode and the electrolyte that lead to the thermal runaway. One of key results comprises multi-level main and side reaction driven heat transfer cross-talk between the anode and the cathode. Therefore, the presented advanced multi-scale battery modelling framework represents a contribution to the advanced virtual development of batteries thereby contributing to tailoring battery design to a specific application.Source: Energy conversion and management. - ISSN 0196-8904 (Vol. 236, May 2021, str. 1-22)Type of material - article, component partPublish date - 2021Language - englishCOBISS.SI-ID - 58992387
Author
Katrašnik, Tomaž |
Mele, Igor |
Zelič, Klemen
Topics
Li-ion battery |
phase separating material |
continuum model |
multi-scale modelling |
heat generation |
thermal runaway |
Li-ionska baterije |
material s fazno separacijo |
kontinuumski model |
več-skalno modeliranje |
generacija toplote |
termični pobeg
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Katrašnik, Tomaž | 23468 |
Mele, Igor | 39813 |
Zelič, Klemen | 35386 |
Source: Personal bibliographies
and: SICRIS
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