Carbon-Coated Li-Containing Powders and Process for Production Thereof

A carbon-coated LiFePO4 powder comprising:

• less than 15 wt. % carbon, wherein the carbon-coated LiFePO4 powder achieves at least about 80% capacity from the theoretical capacity when the carbon-coated LiFePO4 powder is an active component in a cathode cycled between 2.0 and 4.5 V against a Li anode at a discharge rate of C/5 at 25° C.

A carbon-coated LiuMy(XO4)w powder comprising:

• less than 25 wt. % carbon, wherein u=1, 2, or 3, y=1 or 2, w=1 or 3, wherein M is TiaVbCrcMndFeeCofNigSchNbi with a+b+c+d+e+f+g+h+I =1 and 0 <a, b, c, d, e, f, g, h, or I≦1, wherein X=Sx with 0≦x≦1, and wherein the carbon-coated LiuMy(XO4)w powder achieves at least about 80% capacity from the theoretical capacity when the carbon-coated LiuMy(XO4)w powder is an active component in a cathode cycled between 2.0 and 4.5 V against a Li anode at a discharge rate of C/5 at 25° C.

A carbon-coated LiFePO4 powder comprising:

• less than 24 wt. % carbon, wherein the carbon-coated LiFePO4 powder achieves at least about 85% capacity from the theoretical capacity when the carbon-coated LiFePO4 powder is an active component in a cathode cycled between 2.0 and 4.5 V against a Li anode at a discharge rate of C/5 at 25° C.