Patent ID: 8048565

Claim:
A pure, partially substituted or doped lithium-ion reversible electrode material having the nominal formula AB(XO 4 )H in which: A is lithium, which may be partially substituted with another alkali metal representing less than 20% at. of said A; B is a main redox metal at oxidation level of +2 selected from the group consisting of Fe, Mn, Ni, and any mixtures thereof, which may be partially substituted by one or more additional metal at oxidation level between +1 and +5 and representing less than 35% at. of said main +2 redox metal, including 0; XO 4 is any oxyanion wherein X is selected from the group consisting of P, S, V, Si, Nb, Mo, and any combinations thereof; and H is a fluoride, hydroxide or chloride anion representing less that 35% at. of the XO 4 oxyanion, including 0, wherein said material comprises less than about 7% (wt./wt.), excluding 0, of a compound selected from the group consisting of Li 3 PO 4 , Li 4 P 2 O 7 , Li 8 P 8 O 24 , Li 6 P 6 O 18 , LiFeP 2 O 7 , LiFe 5 O 8 , Fe 2 O 3 and any combinations thereof.