Cross-Linked Polymer Electrolytes for Li-Based Batteries: From Solid to Gel Electrolytes - Physico-chimie des Matériaux et des Electrolytes pour l'Energie Laboratoire - - EA 6299 Accéder directement au contenu
Article Dans Une Revue Industrial and engineering chemistry research Année : 2016

Cross-Linked Polymer Electrolytes for Li-Based Batteries: From Solid to Gel Electrolytes

Résumé

We report the preparation of solvent-free polymer electrolytes via a free radical copolymerization of methacrylate-based oligomers in the presence of LiTFSI. Properties of the electrolytes were then studied as a function of their compositions. Furthermore, the incorporation of a room temperature ionic liquid (RTIL) into the copolymer electrolyte to form a gel polymer electrolyte (GPE) is also reported. The high miscibility of the oligomers in the RTIL enables the preparation of the GPEs by a one-step method using the in situ free radical copolymerization. The GPEs have a dry aspect and are free-standing; they also exhibit an ionic conductivity close to 4 × 10–4 S cm–1 at 25 °C and to 1.45 × 10–3 S cm–1 at 65 °C. Furthermore, the GPEs have been used as electrolytes in a Li/Electrolyte/LiNi1/3Mn1/3Co1/3O2 battery. Specific capacities of 79 mAh g–1 and 118 mAh g–1 were reached at the C/5 and C/10 rate, respectively.

Domaines

Chimie Matériaux
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Dates et versions

hal-02060237 , version 1 (07-03-2019)

Identifiants

Citer

Victor Chaudoy, Fouad Ghamouss, Erwann Luais, François Tran-Van. Cross-Linked Polymer Electrolytes for Li-Based Batteries: From Solid to Gel Electrolytes. Industrial and engineering chemistry research, 2016, 55 (37), pp.9925-9933. ⟨10.1021/acs.iecr.6b02287⟩. ⟨hal-02060237⟩

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