Influence of the C/Sn Ratio on the Synthesis and Lithium Electrochemical Insertion of Tin-Supported Graphite Materials Used as Anodes for Li-Ion Batteries

Autor: Cédric Mercier, Raphaël Schneider, Patrick Willmann, Denis Billaud

Publikováno v: International Journal of Electrochemistry, Vol 2011 (2011)

Novel composites consisting of tin particles associated to graphite were prepared by chemical reduction of tin(+2) chloride by t-BuONa-activated sodium hydride in the presence of graphite. The samples obtained using various C/Sn ratios were investiga

Externí odkaz: https://doaj.org/article/e98e90501c024bde9a93131a5b5a9226

A kinetic study of electrochemical lithium insertion in Li7MnN4 by impedance spectroscopy

Autor: Stéphane Bach, Nicolas Emery, E. Panabière, Patrick Willmann, Jean-Pierre Pereira-Ramos

Publikováno v: Journal of Alloys and Compounds. 663:624-630

The kinetics of the electrochemical lithium insertion reaction in the as-prepared Li7MnN4 has been investigated using ac impedance spectroscopy as a function of cycles and temperature. The results are compared and discussed with that obtained for an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3679c439266ad0e43b1ab5025a375646
https://doi.org/10.1016/j.jallcom.2015.12.121

Effect of Cobalt Substitution on Li3–2xCoxN Local Structure: A XAS Investigation

Autor: Patrick Willmann, Jean-Pierre Pereira-Ramos, Alain Michalowicz, Stéphane Bach, Diane Muller-Bouvet

Publikováno v: Inorganic Chemistry. 53:6127-6131

The influence of cobalt substitution on the local structural changes around Co atoms in the layered lithium nitridocobaltates Li(3-2x)Co(x)N for 0.05 ≤ x ≤ 0.44 is investigated using Co K-edge X-ray absorption spectroscopy (EXAFS and XANES). The

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3262c11d59e9d09949c0e933473f7ba6
https://doi.org/10.1021/ic500528f

Ball-milled Li7MnN4: An attractive negative electrode material for lithium-ion batteries

Autor: Nicolas Emery, S. Bach, E. Panabière, Patrick Willmann, Jean-Pierre Pereira-Ramos

Publikováno v: Electrochimica Acta. 97:393-397

The high rate performance of ball-milled Li 7 MnN 4 as negative electrode material in lithium-ion batteries has been investigated at C and 5 C rates. An optimization of ball-milling experimental conditions allows to synthesize this metallic nitride w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3c2b7af29ef2a15ce770b8bc51e35eed
https://doi.org/10.1016/j.electacta.2013.03.012

Rhombohedral iron trifluoride with a hierarchized macroporous/mesoporous texture from gaseous fluorination of iron disilicide

Autor: Barbara Laïk, Diane Delbègue, André Hamwi, Katia Guérin, Celine Cenac-Morthe, Moulay Tahar-sougrati, Jean-Pierre Pereira-Ramos, Jean-Claude Jumas, Léa Doubtsof, Nicolas Louvain, Patrick Willmann

Publikováno v: Materials Chemistry and Physics
Materials Chemistry and Physics, Elsevier, 2016, In press, corrected proof, 173 (15 April 2016), pp.355-363. ⟨10.1016/j.matchemphys.2016.02.023⟩
Materials Chemistry and Physics, 2016, In press, corrected proof, 173 (15 April 2016), pp.355-363. ⟨10.1016/j.matchemphys.2016.02.023⟩

International audience; Stable low temperature rhombohedral iron trifluoride has been obtained by the fluorination under the pure fluorine gas of iron disilicide. The combination of both unusual fluorination process and precursor avoids to get unhydr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::905d9229b3b073b013db87e0b3e145bf
https://hal.archives-ouvertes.fr/hal-01277686