Influence of State‐of‐Charge‐Dependent Decomposition Kinetics at the Li6PS5Cl|LiNi0.83Co0.11Mn0.06O2 Interface on Solid‐State Battery Performance

Solid‐state batteries represent a new approach to energy storage, offering superior safety, higher energy density, and extended cycle life compared to conventional liquid electrolyte‐based lithium‐ion batteries. However, the practical application of solid‐state batteries is hindered by degradation p...

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Main Authors: Melina Witt, Martin A. Lange, Wolfgang G. Zeier
Format: Article
Language:English
Published: Wiley-VCH 2025-08-01
Series:ChemElectroChem
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Online Access:https://doi.org/10.1002/celc.202500237
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author Melina Witt
Martin A. Lange
Wolfgang G. Zeier
author_facet Melina Witt
Martin A. Lange
Wolfgang G. Zeier
author_sort Melina Witt
collection DOAJ
description Solid‐state batteries represent a new approach to energy storage, offering superior safety, higher energy density, and extended cycle life compared to conventional liquid electrolyte‐based lithium‐ion batteries. However, the practical application of solid‐state batteries is hindered by degradation phenomena, particularly on interfaces between components, compromising their long‐term performance. In this work, the kinetics of the state‐of‐charge‐dependent electrolyte degradation at the LiNi0.83Co0.11Mn0.06O2│Li6PS5Cl interface, as well as its influence on cycling performance, are systematically studied electrochemically in solid‐state battery half cells. Combining cycling and C‐rate experiments with electrochemical impedance spectroscopy reveals that half cells charged to higher cutoff potentials (≥3.8 V versus In/InLi; ≥4.4 V versus Li+/Li) exhibit significantly faster degradation kinetics. These influence the cycling performance leading to a plateau in the charge capacity at ≥3.8 V versus In/InLi, while the electrolyte degradation does not affect the bulk electrode transport. Overall, this work emphasizes the importance to investigate state‐of‐charge‐dependent decomposition kinetics in composite electrodes to better understand cycling behavior.
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spelling doaj-art-032f938e3f494bb6b8b970f0f05fcd8f2025-08-21T07:07:36ZengWiley-VCHChemElectroChem2196-02162025-08-011216n/an/a10.1002/celc.202500237Influence of State‐of‐Charge‐Dependent Decomposition Kinetics at the Li6PS5Cl|LiNi0.83Co0.11Mn0.06O2 Interface on Solid‐State Battery PerformanceMelina Witt0Martin A. Lange1Wolfgang G. Zeier2Institute of Inorganic and Analytical Chemistry University of Münster Corrensstrasse 28/30 48149 Münster GermanyInstitute of Inorganic and Analytical Chemistry University of Münster Corrensstrasse 28/30 48149 Münster GermanyInstitute of Inorganic and Analytical Chemistry University of Münster Corrensstrasse 28/30 48149 Münster GermanySolid‐state batteries represent a new approach to energy storage, offering superior safety, higher energy density, and extended cycle life compared to conventional liquid electrolyte‐based lithium‐ion batteries. However, the practical application of solid‐state batteries is hindered by degradation phenomena, particularly on interfaces between components, compromising their long‐term performance. In this work, the kinetics of the state‐of‐charge‐dependent electrolyte degradation at the LiNi0.83Co0.11Mn0.06O2│Li6PS5Cl interface, as well as its influence on cycling performance, are systematically studied electrochemically in solid‐state battery half cells. Combining cycling and C‐rate experiments with electrochemical impedance spectroscopy reveals that half cells charged to higher cutoff potentials (≥3.8 V versus In/InLi; ≥4.4 V versus Li+/Li) exhibit significantly faster degradation kinetics. These influence the cycling performance leading to a plateau in the charge capacity at ≥3.8 V versus In/InLi, while the electrolyte degradation does not affect the bulk electrode transport. Overall, this work emphasizes the importance to investigate state‐of‐charge‐dependent decomposition kinetics in composite electrodes to better understand cycling behavior.https://doi.org/10.1002/celc.202500237cathode electrolyte interphaseimpedanceNCMsolid‐state batteriessulfide solid electrolytes
spellingShingle Melina Witt
Martin A. Lange
Wolfgang G. Zeier
Influence of State‐of‐Charge‐Dependent Decomposition Kinetics at the Li6PS5Cl|LiNi0.83Co0.11Mn0.06O2 Interface on Solid‐State Battery Performance
ChemElectroChem
cathode electrolyte interphase
impedance
NCM
solid‐state batteries
sulfide solid electrolytes
title Influence of State‐of‐Charge‐Dependent Decomposition Kinetics at the Li6PS5Cl|LiNi0.83Co0.11Mn0.06O2 Interface on Solid‐State Battery Performance
title_full Influence of State‐of‐Charge‐Dependent Decomposition Kinetics at the Li6PS5Cl|LiNi0.83Co0.11Mn0.06O2 Interface on Solid‐State Battery Performance
title_fullStr Influence of State‐of‐Charge‐Dependent Decomposition Kinetics at the Li6PS5Cl|LiNi0.83Co0.11Mn0.06O2 Interface on Solid‐State Battery Performance
title_full_unstemmed Influence of State‐of‐Charge‐Dependent Decomposition Kinetics at the Li6PS5Cl|LiNi0.83Co0.11Mn0.06O2 Interface on Solid‐State Battery Performance
title_short Influence of State‐of‐Charge‐Dependent Decomposition Kinetics at the Li6PS5Cl|LiNi0.83Co0.11Mn0.06O2 Interface on Solid‐State Battery Performance
title_sort influence of state of charge dependent decomposition kinetics at the li6ps5cl lini0 83co0 11mn0 06o2 interface on solid state battery performance
topic cathode electrolyte interphase
impedance
NCM
solid‐state batteries
sulfide solid electrolytes
url https://doi.org/10.1002/celc.202500237
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AT wolfganggzeier influenceofstateofchargedependentdecompositionkineticsattheli6ps5cllini083co011mn006o2interfaceonsolidstatebatteryperformance