Article (Scientific journals)
Solid polymer electrolytes based on poly(ethylene oxide)/carbonated soybean oil blends
Raj, Ashish; Grignard, Bruno; Detrembleur, Christophe et al.
2025In ACS Applied Polymer Materials, 7 (5), p. 3033 - 3042
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Keywords :
carbon dioxide; battery
Abstract :
[en] Blends of poly(ethylene oxide) and carbonated soybean oil with lithium bis(trifluoromethane sulfonyl)imide salt are investigated here as free-standing solid polymer electrolyte (SPE) membranes. Carbonated soybean oil decreases the crystallinity of poly(ethylene oxide) and confers adhesive nature to the polymer blends, in addition to better interface with electrodes. An ionic conductivity of 3.3 × 10-5 S cm-1 at room temperature and a broad electrochemical stability window (>4.2 V versus Li/Li+) are observed for the membranes prepared from those blends, together with a high stability versus lithium metal electrodes as inferred from stripping and plating experiments (for cycling time > 300 h). Subsequently, LiFePO4/polymer blend/lithium metal battery prototypes are assembled and deliver 108 mA h g-1 of discharge capacity with high Coulombic efficiency at 0.1C and 60 °C in the first cycle. Here, the trade-offs in poly(ethylene oxide)-based SPEs are addressed with bioderived carbonate-containing molecules contributing toward sustainable materials development.
Research Center/Unit :
CESAM - Complex and Entangled Systems from Atoms to Materials - ULiège [BE]
CERM - Center for Education and Research on Macromolecules - ULiège [BE]
Disciplines :
Materials science & engineering
Chemistry
Author, co-author :
Raj, Ashish;  Université Catholique de Louvain [UCLouvain] - Institute of Condensed Matter and Nanoscience [IMCN] - Belgium
Grignard, Bruno  ;  University of Liège [ULiège] - Complex and Entangled Systems from Atoms to Materials [CESAM] Research Unit - Center for Education and Research on Macromolecules [CERM] - Belgium ; University of Liège [ULiège] - FRITCO2T Platform - Belgium
Detrembleur, Christophe  ;  University of Liège [ULiège] - Complex and Entangled Systems from Atoms to Materials [CESAM] Research Unit - Center for Education and Research on Macromolecules [CERM] - Belgium ; Walloon Excellence [ WEL] Research Institute - Wavre - Belgium
Gohy, Jean-François ;  Université Catholique de Louvain [UCLouvain] - Institute of Condensed Matter and Nanoscience [IMCN] - Belgium
Language :
English
Title :
Solid polymer electrolytes based on poly(ethylene oxide)/carbonated soybean oil blends
Publication date :
14 March 2025
Journal title :
ACS Applied Polymer Materials
eISSN :
2637-6105
Publisher :
American Chemical Society (ACS)
Volume :
7
Issue :
5
Pages :
3033 - 3042
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
Innoviris - Institut Bruxellois pour la Recherche et l'Innovation
F.R.S.-FNRS - Fund for Scientific Research
Funding text :
A.R. and JFG are grateful to INNOVIRIS for supporting this research in the frame of a BRIDGE project. C.D. is FRS-FNRS Research Director. The authors thank Maxime Bourguignon (CERM, University of Lie\u0300ge) for performing rheological measurements.
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since 28 August 2025

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