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The Effects of Gas Saturation of Electrolytes on the Performance and Durability of Lithium‐Ion Batteries

Traces of species in batteries are known to impact battery performance. The effects of gas species, although often reported in the electrolyte and evolving during operation, have not been systematically studied to date and are therefore barely understood. This study reveals and compares the effects...

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Autores principales: Bläubaum, Lars, Röse, Philipp, Schmidt, Leon, Krewer, Ulrike
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8361957/
https://www.ncbi.nlm.nih.gov/pubmed/34003593
http://dx.doi.org/10.1002/cssc.202100845
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author Bläubaum, Lars
Röse, Philipp
Schmidt, Leon
Krewer, Ulrike
author_facet Bläubaum, Lars
Röse, Philipp
Schmidt, Leon
Krewer, Ulrike
author_sort Bläubaum, Lars
collection PubMed
description Traces of species in batteries are known to impact battery performance. The effects of gas species, although often reported in the electrolyte and evolving during operation, have not been systematically studied to date and are therefore barely understood. This study reveals and compares the effects of different gases on the charge‐discharge characteristics, cycling stability and impedances of lithium‐ion batteries. All investigated gases have been previously reported in lithium‐ion batteries and are thus worth investigating: Ar, CO(2), CO, C(2)H(4), C(2)H(2), H(2), CH(4) and O(2). Gas‐electrolyte composition has a significant influence on formation, coulombic and energy efficiencies, C‐rate capability, and aging. Particularly, CO(2) and O(2) showed a higher C‐rate capability and a decrease in irreversible capacity loss during the first cycle compared to Ar. Similar discharge capacities and aging behaviors are observed for CO, C(2)H(4) and CH(4). Acetylene showed a large decrease in performance and cycle stability. Furthermore, electrochemical impedance spectroscopy revealed that the gases mainly contribute to changes in charge transfer processes, whereas the effects on resistance and solid electrolyte interphase performance were minor. Compared to all other gas–electrolyte mixtures, the use of CO(2) saturated electrolyte showed a remarkable increase in all performance parameters including lifetime.
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spelling pubmed-83619572021-08-17 The Effects of Gas Saturation of Electrolytes on the Performance and Durability of Lithium‐Ion Batteries Bläubaum, Lars Röse, Philipp Schmidt, Leon Krewer, Ulrike ChemSusChem Full Papers Traces of species in batteries are known to impact battery performance. The effects of gas species, although often reported in the electrolyte and evolving during operation, have not been systematically studied to date and are therefore barely understood. This study reveals and compares the effects of different gases on the charge‐discharge characteristics, cycling stability and impedances of lithium‐ion batteries. All investigated gases have been previously reported in lithium‐ion batteries and are thus worth investigating: Ar, CO(2), CO, C(2)H(4), C(2)H(2), H(2), CH(4) and O(2). Gas‐electrolyte composition has a significant influence on formation, coulombic and energy efficiencies, C‐rate capability, and aging. Particularly, CO(2) and O(2) showed a higher C‐rate capability and a decrease in irreversible capacity loss during the first cycle compared to Ar. Similar discharge capacities and aging behaviors are observed for CO, C(2)H(4) and CH(4). Acetylene showed a large decrease in performance and cycle stability. Furthermore, electrochemical impedance spectroscopy revealed that the gases mainly contribute to changes in charge transfer processes, whereas the effects on resistance and solid electrolyte interphase performance were minor. Compared to all other gas–electrolyte mixtures, the use of CO(2) saturated electrolyte showed a remarkable increase in all performance parameters including lifetime. John Wiley and Sons Inc. 2021-06-16 2021-07-22 /pmc/articles/PMC8361957/ /pubmed/34003593 http://dx.doi.org/10.1002/cssc.202100845 Text en © 2021 The Authors. ChemSusChem published by Wiley-VCH GmbH https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Full Papers
Bläubaum, Lars
Röse, Philipp
Schmidt, Leon
Krewer, Ulrike
The Effects of Gas Saturation of Electrolytes on the Performance and Durability of Lithium‐Ion Batteries
title The Effects of Gas Saturation of Electrolytes on the Performance and Durability of Lithium‐Ion Batteries
title_full The Effects of Gas Saturation of Electrolytes on the Performance and Durability of Lithium‐Ion Batteries
title_fullStr The Effects of Gas Saturation of Electrolytes on the Performance and Durability of Lithium‐Ion Batteries
title_full_unstemmed The Effects of Gas Saturation of Electrolytes on the Performance and Durability of Lithium‐Ion Batteries
title_short The Effects of Gas Saturation of Electrolytes on the Performance and Durability of Lithium‐Ion Batteries
title_sort effects of gas saturation of electrolytes on the performance and durability of lithium‐ion batteries
topic Full Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8361957/
https://www.ncbi.nlm.nih.gov/pubmed/34003593
http://dx.doi.org/10.1002/cssc.202100845
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