A New Glass-Forming Electrolyte Based on Lithium Glycerolate
AbstractThe detailed study of the interplay between the physicochemical properties and the long-range charge migration mechanism of polymer electrolytes able to carry lithium ions is crucial in the development of next-generation lithium batteries. Glycerol exhibits a number of features (e.g., glass-forming behavior, low glass transition temperature, high flexibility of the backbone, and efficient coordination of lithium ions) that make it an appealing ion-conducting medium and a challenging building block in the preparation of new inorganic–organic polymer electrolytes. This work reports the preparation and the extensive investigation of a family of 11 electrolytes based on lithium glycerolate. The electrolytes have the formula C3H5(OH)3−x(OLi)x, where 0 ≤ x ≤ 1. The elemental composition is evaluated by inductively coupled plasma atomic emission spectroscopy. The structure and interactions are studied by vibrational spectroscopies (FT-IR and micro-Raman). The thermal properties are gauged by modulated differential scanning calorimetry and thermogravimetric analysis. Finally, insights on the long-range charge migration mechanism and glycerol relaxation events are investigated via broadband electrical spectroscopy. Results show that in these electrolytes, glycerolate acts as a large and flexible macro-anion, bestowing to the material single-ion conductivity (1.99 × 10−4 at 30 °C and 1.55 × 10−2 S∙cm−1 at 150 °C for x = 0.250). View Full-Text
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Pagot, G.; Tonello, S.; Vezzù, K.; Di Noto, V. A New Glass-Forming Electrolyte Based on Lithium Glycerolate. Batteries 2018, 4, 41.
Pagot G, Tonello S, Vezzù K, Di Noto V. A New Glass-Forming Electrolyte Based on Lithium Glycerolate. Batteries. 2018; 4(3):41.Chicago/Turabian Style
Pagot, Gioele; Tonello, Sara; Vezzù, Keti; Di Noto, Vito. 2018. "A New Glass-Forming Electrolyte Based on Lithium Glycerolate." Batteries 4, no. 3: 41.
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