PELÉ, Vincent; FLAMARY, Florian; BOURGEOIS, Lydie; PECQUENARD, Brigitte; LE CRAS, Frédéric

doi:10.1016/j.elecom.2014.12.009

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PELÉ, Vincent
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Laboratoire d'Innovation pour les Technologies des Energies Nouvelles et les nanomatériaux [LITEN]
Université Grenoble Alpes [2016-2019] [UGA [2016-2019]]

FLAMARY, Florian
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Laboratoire d'Innovation pour les Technologies des Energies Nouvelles et les nanomatériaux [LITEN]
Université Grenoble Alpes [2016-2019] [UGA [2016-2019]]

BOURGEOIS, Lydie
Institut des Sciences Moléculaires [ISM]

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Electrochemistry Communications. 2015, vol. 51, p. 81-84

Elsevier

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All-solid-state thin film batteries based on sputtered pyrite electrodes, a lithium phosphorus oxynitride electrolyte and a lithium anode were prepared and characterized. The successive reduction of both S22 − and Fe2 + species led to an impressive volumetric discharge capacity, five times higher than the one for LiCoO2. Excellent reversibility and capacity retention were obtained during the first and the subsequent 800 charge–discharge cycles. A continuous cycling in the low voltage domain was found to be detrimental to the reversibility of the conversion reaction, suggesting a progressive evolution of the phase distribution inside the electrode. The initial capacity was easily recovered after few full oxidation cycles.< Leer menos

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Perfect reversibility of the lithium insertion in FeS2 : the combined effects of all-solid-state and thin film cell configurations

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