Nanofillers modified with aluminum carboxylate for application in Polymer composite electrolytes for lithium-ion batteries

• DOI: 10.1007/s00339-024-08007-3
• Publication Date: 2024-11-11T14:21:12Z
• Authors: Magdalena Słojewska; Arkadiusz Czerwiński; Dorota Monikowska; Joanna Kruk; Ewa Zygadło-Monik...
• Keywords: Carboxylate; Polymer Electrolytes

Abstract One of the additives that positively influence parameters electrolyte for lithium-ion cells are ceramic nanoparticles, such as SiO 2 and α -Al O 3 . However, they tend to agglomerate sediment, which is an unfavorable phenomenon. An effective strategy prevent this modify surface particles with polymeric compounds, can increase compatibility stability in system. To reduce agglomeration sedimentation, a method was developed aluminum oxide silica using carboxylate, chemically combines inorganic have hydroxyl groups on their through alkoxide bond. This allows introduction oligooxyethylene surface, thus obtaining more stable systems. The effectiveness modification confirmed dynamic light scattering (DLS) measurements particle size liquid organic solvents, potential solvents electrolytes cells. modified nanosilica were then used solid polymer made poly(ethylene oxide) (PEO). led higher conductivity values compared use unmodified fillers. obtained lithium transference number PEO/CF SO Li or carboxylate equal 0.32–0.40.