Effect of flame retardants and electrolyte variations on Li-Ion batteries

Abstract: Lithium-ion batteries are being increasingly used and deployed commercially. Cell-level improvements that address flammability characteristics and thermal runaway are currently being intensively tested and explored. In this study, three additives—namely, lithium oxalate, sodium fumarate and sodium malonate—which exhibit fire-retardant properties are investigated with respect to their incorporation into graphite anodes and their electro/chemical interactions within the anode and the cell material studied. It has been shown that flame-retardant concentrations of up to approximately 20 wt.% within the anode coating do not cause significant capacity degradation but can provide a flame-retardant effect due to their inherent, fire-retardant release of CO2 gas. The flame-retardant-containing layers exhibit good adhesion to the current collector. Their suitability in lithium-ion cells was tested in pouch cells and, when compared to pure graphite anodes, showed almost no deterioration regarding cell capacity when used in moderate (≤20 wt.%) concentrations

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch
Anmerkungen
Batteries. - 9, 2 (2023) , 82, ISSN: 2313-0105

Klassifikation
Elektrotechnik, Elektronik

Ereignis
Veröffentlichung
(wo)
Freiburg
(wer)
Universität
(wann)
2023
Urheber
Fulik, Natalia
Hofmann, Andreas
Nötzel, Dorit
Müller, Marcus
Reuter, Ingo
Müller, Freya
Smith, Anna
Hanemann, Thomas

DOI
10.3390/batteries9020082
URN
urn:nbn:de:bsz:25-freidok-2332721
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
25.03.2025, 13:45 MEZ

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  • 2023

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