The application and characteristics of hot-pressed, nanocomposite, polyethyleneoxide (PEO)-based electrolyte membranes in all solid-state rechargeable, Li/LiFePO4 polymer cells are presented and discussed. Both electrolyte separators and LiFePO4 composite cathodes were prepared by hot-pressing by a completely dry, solvent-free procedure. The thermal stability of both the PEO membranes and the composite cathodes was investigated. The cells were assembled by the direct lamination of the components, namely a lithium foil anode, the PEO-based electrolyte membrane and the composite LiFePO4 cathode tape. The Li/LiFePO4 polymer cells perform well in terms of specific capacity, charge/discharge efficiency and cycle life. At temperatures above 90 °C, the cells are capable of delivering capacities exceeding 100 mAh/g, even at moderately high rates. More than 400 cycles were obtained with a charge/discharge efficiency approaching 100%.

Hot –pressed, solvent-free, nanocomposite, PEO-based electrolyte membranes II. All solid-state Li/LiFePO4 polymer batteries

HASSOUN, Jusef;
2003

Abstract

The application and characteristics of hot-pressed, nanocomposite, polyethyleneoxide (PEO)-based electrolyte membranes in all solid-state rechargeable, Li/LiFePO4 polymer cells are presented and discussed. Both electrolyte separators and LiFePO4 composite cathodes were prepared by hot-pressing by a completely dry, solvent-free procedure. The thermal stability of both the PEO membranes and the composite cathodes was investigated. The cells were assembled by the direct lamination of the components, namely a lithium foil anode, the PEO-based electrolyte membrane and the composite LiFePO4 cathode tape. The Li/LiFePO4 polymer cells perform well in terms of specific capacity, charge/discharge efficiency and cycle life. At temperatures above 90 °C, the cells are capable of delivering capacities exceeding 100 mAh/g, even at moderately high rates. More than 400 cycles were obtained with a charge/discharge efficiency approaching 100%.
2003
G. B., Appetecchi; Hassoun, Jusef; B., Scrosati; F., Croce; F., Cassel; M., Salomon
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2331162
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