New Insights on the Origin of Chemical Instabilities Between Poly(carbonate)-based Polymer and Li-containing Inorganic Materials.

Autor: Meabe L; Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510, Vitoria-Gasteiz, Spain.; POLYMAT, University of the Basque Country UPV/EHU, Joxe Mari Korta Centre, Avda. Tolosa 72, 20018, Donostia-San Sebastián, Spain., Zagórski J; Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510, Vitoria-Gasteiz, Spain.; University of the Basque Country (UPV/EHU), Barrio Sarriena, s/n, 48940, Leioa, Spain., Mecerreyes D; POLYMAT, University of the Basque Country UPV/EHU, Joxe Mari Korta Centre, Avda. Tolosa 72, 20018, Donostia-San Sebastián, Spain.; Ikerbasque, Basque Foundation for Science, 48011, Bilbao, Spain., Aguesse F; Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510, Vitoria-Gasteiz, Spain., LLordes A; Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510, Vitoria-Gasteiz, Spain.; Ikerbasque, Basque Foundation for Science, 48011, Bilbao, Spain.; FUELIUM, Edifici Eureka., Av. Can Domènech, S/N., 08193, Bellaterra, Barcelona, Spain.
Jazyk: angličtina
Zdroj: Chemphyschem : a European journal of chemical physics and physical chemistry [Chemphyschem] 2022 Nov 04; Vol. 23 (21), pp. e202200296. Date of Electronic Publication: 2022 Aug 31.
DOI: 10.1002/cphc.202200296
Abstrakt: Composite electrolytes, owing to their ability to combine both polymeric and ceramic properties are promising candidates for Solid-State-Batteries (SSBs). In this paper, we assess the effect of ceramic fillers (Li 1+x Al x Ti 2-x P 3 O 12 , Li 6.55 Ga 0.15 La 3 Zr 2 O 12 and Al 2 O 3 ) in a poly(ethylene oxide carbonate)-LiTFSI matrix. First, the role of the filler chemistry on thermal and electrochemical properties is evaluated: reduced polymer crystallinity leads to an increased ionic conductivity at low temperatures; and the ionic conductivity at low temperatures (<30 °C) is improved for LLZO filler particles. This behaviour is commonly attributed to new conduction pathways generated within the fillers. However, we also demonstrate that a polymer degradation is induced by the filler chemistry by modifying the polymer chemistry in poly(ethylene glycol), initiated by LiOH that can be found on the LLZO surface. The electrolyte containing LATP or Al 2 O 3 does not induce any degradation. Hence, special attention must be paid to surface impurities, as degradation may occur.
(© 2022 Wiley-VCH GmbH.)
Databáze: MEDLINE
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