Patent ID: 7601318
Filing Date: 2009-10-13
Classification: C01B,C01P,H01G,H01M,Y02E,Y10T

Abstract:
1. A method for the synthesis of compounds of the formula C—Li x M 1−y M′ y (XO 4 ) n , wherein C represents carbon cross-linked with the compound of formula Li x M 1−y M′ y (XO 4 ) n , wherein 0≦x≦2, ≦y≦0.6, and 1≦n≦1.5, M is at least one transition metal selected from the first line of the periodic table, M′ is an element with a fixed valency selected from the group consisting of Mg 2+ , Ca 2+ , Al 3+ , Zn 2+ and combinations thereof and X is S, P or Si, said method comprising: bringing into equilibrium in the required proportions, for a duration of less than 5 hours, a mixture comprising the following precursors: a) a source of M comprising at least one transition metal or at least one salt thereof; b) a source of the element M′ that is a salt of M′; c) a source of lithium that is a salt of lithium; d) a compound that is a source of X; and e) a source of a carbon conductor that is an organic substance, the method further comprising at least one pyrolysis step of the source compound e) so as to obtain a carbon conductor with an electronic conductivity greater than 10