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Main Authors: Jaisuk, Chutchawan, Sawasdee, Tanawat, Jindata, Warakorn, Kongnok, Thanundon, Jungthawan, Sirichok, Fujimori, Atsushi, Meevasana, Worawat
Format: Preprint
Published: 2024
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Online Access:https://arxiv.org/abs/2407.13172
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author Jaisuk, Chutchawan
Sawasdee, Tanawat
Jindata, Warakorn
Kongnok, Thanundon
Jungthawan, Sirichok
Fujimori, Atsushi
Meevasana, Worawat
author_facet Jaisuk, Chutchawan
Sawasdee, Tanawat
Jindata, Warakorn
Kongnok, Thanundon
Jungthawan, Sirichok
Fujimori, Atsushi
Meevasana, Worawat
contents This work explores the unique character of strongly correlated systems, specifically Mott-insulators, in the context of battery electrode materials. The study investigates the correlation between the proposed chemical potential evolution and charge storage performance in transition metal oxide-based electrodes. The hypothesis suggests that doping a Mott insulator reduces the Hubbard Coulomb interaction, which could slow down the chemical shift and result in enhanced charge storage capabilities compared to classic band insulators. The results support the hypothesis through a systematic comparison of selected transition metal oxide-based electrodes (Cu, Mn, Co, and Fe oxide electrodes). Furthermore, a toy model is employed to investigate the shift in chemical potential with doping-dependent U using DFT+U calculation, aiming to visualize the chemical potential evolution in Mott-insulators relevant to their application as battery electrodes. This study provides valuable insights into how strongly correlated materials, especially Mott-insulators, contribute to the advancement of energy storage technologies.
format Preprint
id arxiv_https___arxiv_org_abs_2407_13172
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Chemical Potential Shift in Doped Mott-insulators for Energy Storage Applications
Jaisuk, Chutchawan
Sawasdee, Tanawat
Jindata, Warakorn
Kongnok, Thanundon
Jungthawan, Sirichok
Fujimori, Atsushi
Meevasana, Worawat
Strongly Correlated Electrons
This work explores the unique character of strongly correlated systems, specifically Mott-insulators, in the context of battery electrode materials. The study investigates the correlation between the proposed chemical potential evolution and charge storage performance in transition metal oxide-based electrodes. The hypothesis suggests that doping a Mott insulator reduces the Hubbard Coulomb interaction, which could slow down the chemical shift and result in enhanced charge storage capabilities compared to classic band insulators. The results support the hypothesis through a systematic comparison of selected transition metal oxide-based electrodes (Cu, Mn, Co, and Fe oxide electrodes). Furthermore, a toy model is employed to investigate the shift in chemical potential with doping-dependent U using DFT+U calculation, aiming to visualize the chemical potential evolution in Mott-insulators relevant to their application as battery electrodes. This study provides valuable insights into how strongly correlated materials, especially Mott-insulators, contribute to the advancement of energy storage technologies.
title Chemical Potential Shift in Doped Mott-insulators for Energy Storage Applications
topic Strongly Correlated Electrons
url https://arxiv.org/abs/2407.13172