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

TitleHot-pressed, solvent-free, nanocomposite, PEO-based electrolyte membranes: II. All solid-state Li/LiFePO4 polymer batteries
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2003
AuthorsAppetecchi, Giovanni Battista, Hassoun J., Scrosati B., Croce F., Cassel F., and Salomon M.
JournalJournal of Power Sources
Volume124
Pagination246-253
ISSN03787753
KeywordsCathodes, Electric discharges, Electrolytes, Hot pressing, Nanostructured materials, Polymer batteries, Thermodynamic stability
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 100mAh/g, even at moderately high rates. More than 400 cycles were obtained with a charge/discharge efficiency approaching 100%. © 2003 Elsevier B.V. All rights reserved.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-0041328516&doi=10.1016%2fS0378-7753%2803%2900611-6&partnerID=40&md5=8bdb7948a115f3fa5e50db8fbc2e9842
DOI10.1016/S0378-7753(03)00611-6
Citation KeyAppetecchi2003246