20.500.12556/RUL-113740 Revealing the thermodynamic background of the memory effect in phase separating cathode materials Termodinamsko ozadje spominskega efekta v katodnih materialih s fazno separacijo Phase separating Li-ion battery cell cathode materials feature a well-known phenomenon called the memory effect. It manifests itself as an abnormal change in working voltage being dependent on cell cycling history. It was only recently that plausible mechanistic reasoning of the memory effect in Li-ion batteries was proposed. However, the existing literature does still not consistently reveal a phenomenological background for the onset or absence of the memory effect. This paper provides strong experimental and theoretical evidence of the memory effect in phase separating Li-ion battery cathode materials. Specifically, the background leading to the onset or absence of the memory effect and the underlying causal chain of phenomena from the collective particle-by-particle intra-electrode phenomena to macroscopic voltage output of the battery are presented and discussed. The results, clearly reveal that no memory effect is observed and predicted for low cut off voltages, whereas the absence of the first rest in memory writing cycle does not result in the absence of the memory effect, as previously believed. In addition, excellent agreement between the simulated and measured results is shown which, on one hand confirms the credibility of the combined analyses and, on the other, provides clear causal relations from macroscopic experimental parameters to simulated phenomena on the particle level. Li-ion battery phase separating material multi-particle porous electrode memory effect litij ionske baterije spominski efekt katodni material s fazno separacijo večdelčna porozna elektroda true false true Angleški jezik Slovenski jezik Članek v reviji 2020-01-30 08:25:28 2020-01-30 08:25:32 2022-08-26 03:47:17 0000-00-00 00:00:00 2019 0 0 Str. 690-700 no. 11/12 Vol. 65 Nov./Dec. 2019 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.352(045) 0039-2480 10.5545/sv-jme.2019.6366 16934939 762116 RAZ_Zelic_Klemen_2019.pdf RAZ_Zelic_Klemen_2019.pdf 1 9F0523949081AB41FBA487EE7E37536D 5f2f0eb192c20ca11b2814a35784769d682e4ad48b2878988568feca03c314b4 2639a2a3-a1b8-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=125844 https://www.sv-jme.eu/sl/article/revealing-the-thermodynamic-background-of-the-memory-effect-in-phase-separating-cathode-materials/ 1 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=125843 Fakulteta za strojništvo Strojniški vestnik 0 0 0