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Entering voltage hysteresis in phase-separating materials [Elektronski vir] : revealing the electrochemical signature of the intraparticle phase-separated stateKatrašnik, Tomaž ...Hysteresis is a general phenomenon regularly observed in various materials. Usually, hysteretic behavior is an intrinsic property that cannot be circumvented in the non-equilibrium operation of the ... system. Herein, we show that, at least with regard to the hysteretic behavior of phase-separating battery materials, it is possible to enter (deeply) the hysteretic loop at finite battery currents. This newly observed electric response of the electrode, which is inherent to phase-separating materials, is, for the first time, related to its microscopic origin arising from a (significant) share of the active material residing in an intraparticle phase-separated state. This intriguing observation was further generalized by revealing that a phase-separating material can feature (significantly) different chemical potentials at the same bulk lithiation level and temperature when exposed to the same finite current and external voltage hysteresis. Therefore, the intraparticle phase-separated state significantly affected the DC and AC characteristics of the battery. The experimental evidence for entering the intraparticle phase-separated state is supported by thermodynamic reasoning and advanced modeling. The current findings will help advance the understanding, control, diagnostics, and monitoring of batteries composed of phase-separating materials while also providing pertinent motivation for the enhancement of battery design and performance.Source: Advanced materials [Elektronski vir]. - ISSN 1521-4095 (Vol. 35, iss. 31, [article no.] 2210937, Aug. 2023, str. 1-18)Type of material - e-article ; adult, seriousPublish date - 2023Language - englishCOBISS.SI-ID - 151199235
Author
Katrašnik, Tomaž |
Moškon, Jože |
Zelič, Klemen |
Mele, Igor |
Ruiz-Zepeda, Francisco |
Gaberšček, Miran
Topics
battery |
phase-separating materials |
Lithium iron phosphate |
voltage hysteresis |
intraparticle phase-separated |
li-ionska baterija |
material s frazno separacijo |
vstop v napetostno histerezo |
frazno separirano stanje
Author | Katrašnik, Tomaž ... |
Title | Entering voltage hysteresis in phase-separating materials [Elektronski vir] : revealing the electrochemical signature of the intraparticle phase-separated state |
Publication date | 2023-08-01 |
COBISS.SI-ID | 151199235 |
Publication version in repository | Publisher's version |
Publication licence | Creative Commons Attribution 4.0 International |
Embargo | Immediate publication for public |
Project(s) from which the publication was funded
Title | Acronym | Project ID | Funder |
---|---|---|---|
Nova generacija elektrokemijskega baterijskega modela LiFePO4 | J7-8270-2017 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Optimization of scalaBle rEaltime modeLs and functIonal testing for e-drive ConceptS | OBELICS | 769506 |
European Commission |
Energetsko strojništvo | P2-0401-2022 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Napredni materiali za nizkoogljično in trajnostno družbo | P2-0393-2022 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Napredni večskalni model NMC katodnih materialov za izboljšane sisteme za shranjevanje energije naslednje generacije | J2-2494-2020 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
Files that belong to the publication
Link |
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https://onlinelibrary.wiley.com/doi/10.1002/adma.202210937 |
https://repozitorij.uni-lj.si/IzpisGradiva.php?id=148258 |
https://dirros.openscience.si/IzpisGradiva.php?id=16910 |
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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 |
Moškon, Jože | 28561 |
Zelič, Klemen | 35386 |
Mele, Igor | 39813 |
Ruiz-Zepeda, Francisco | 37779 |
Gaberšček, Miran | 00582 |
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