US 7,457,018 B2
	Synthesis method for carbon material based on LiMPO4
Michel Armand, Montreal (Canada); Michel Gauthier, La Prairie (Canada); Jean-Francois Magnan, Neuville (Canada); and Nathalie Ravet, Montreal (Canada)
Assigned to Hydro-Quebec, Montreal, Quebec (Canada)
Filed on Jan. 19, 2007, as Appl. No. 11/655,084.
Application 11/655084 is a continuation of application No. 10/362764, filed on Jun. 19, 2003, granted, now 7,285,260.
Claims priority of application No. 2320661 (CA), filed on Sep. 26, 2000; and application No. PCT/CA01/01350 (WO), filed on Sep. 21, 2001.
Prior Publication US 2007/0134554 A1, Jun. 14, 2007
This patent is subject to a terminal disclaimer.
Int. Cl. B32B 9/00 (2006.01); G02F 1/00 (2006.01); H01G 4/008 (2006.01); H01M 4/58 (2006.01)

U.S. Cl. 359—32  [361/305; 428/402; 428/403; 429/218.1; 429/221; 429/229; 429/231.6; 429/231.95]

34 Claims

1. A material comprising particles, the particles comprising a core and a carbon deposit on the core, wherein the core comprises at least one compound of the formula LixM1-yM′y(XO4)n, wherein x, y and n are numbers such that 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 from the group consisting of Mg2+, Ca2+, Al3+, and Zn2+, X is S, P or Si, and wherein the conductivity of the material is greater than 10−8 S.cm−1, measured on a sample of powder compressed at a pressure greater than or equal to 3000 Kg.cm−2.