Chemistry of inorganic compounds – Phosphorus or compound thereof – Oxygen containing
Reexamination Certificate
2001-09-21
2009-10-13
Kopec, Mark (Department: 1796)
Chemistry of inorganic compounds
Phosphorus or compound thereof
Oxygen containing
C423S326000, C423S327100, C423S331000, C423S332000, C423S518000, C423S544000, C423S179500, C429S221000, C429S231600, C429S218100, C252S506000, C252S518100, C252S521500, C252S521600
Reexamination Certificate
active
07601318
ABSTRACT:
A method for the synthesis of compounds of the formula C—LixM1−yM′y(XO4)n, where C represents carbon cross-linked with the compound LixM1−yM′y(XO4)n, in which x, y and n are numbers such as 0≦x≦2, 0≦y≦0.6, and 1≦n≦1.5, M is a transition metal or a mixture of transition metals from the first period of the periodic table, M′ is an element with fixed valency selected among Mg2+, Ca2+, Al3+, Zn2+or a combination of these same elements and X is chosen among S, P and Si, by bringing into equilibrium, in the required proportions, the mixture of precursors, with a gaseous atmosphere, the synthesis taking place by reaction and bringing into equilibrium, in the required proportions, the mixture of the precursors, the procedure comprising at least one pyrolysis step of the carbon source compound in such a way as to obtain a compound in which the electronic conductivity measured on a sample of powder compressed at a pressure of 3750 Kg·cm−2is greater than 10−8S·cm−1. The materials obtained have excellent electrical conductivity, as well a very improved chemical activity.
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Armand Michel
Gauthier Michel
Magnan Jean-Francois
Ravet Nathalie
Buchanan & Ingersoll & Rooney PC
CNRS
Hydro-Quebec
Kopec Mark
Nguyen Tri V
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