Method of preparing positive active material for...

Details Method of preparing positive active material for... Method of preparing positive active material for...

2005-12-13

2005-12-13

Talbot, Brian K. (Department: 1762)

Coating processes

Electrical product produced

Fuel cell part

C427S212000, C427S216000, C427S217000

Reexamination Certificate

active

06974601

ABSTRACT:
Disclosed is a positive active material for a rechargeable lithium battery. The positive active material includes at least one compound represented by formulas 1 to 4:in-line-formulae description="In-line Formulae" end="lead"?LixNi1-yMnyF2  (1)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?LixNi1-yMnyS2  (2)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?LixNi1-y-zMnyMzO2-aFa  (3)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?LixNi1-y-zMnyMzO2-aSa  (4)in-line-formulae description="In-line Formulae" end="tail"?where M is selected from the group consisting of Co, Mg, Fe, Sr, Ti, B, Si, Ga, Al, Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Ac, Th, Pa, U, Np, Pu, Am, Cm, Bk, Cf, Es, Fm, Md, No and Lr, 0.95≦x≦1.1, 0<y≦0.99, 0≦z≦0.5, and 0≦a≦0.5; and a metal oxide or composite metal oxide layer formed on the compound.

REFERENCES:
patent: 5705291 (1998-01-01), Amatucci et al.
patent: 5733685 (1998-03-01), Wang
patent: 6103421 (2000-08-01), Torata et al.
patent: 6372385 (2002-04-01), Kweon et al.
patent: 6756155 (2004-06-01), Kweon et al.
patent: 2002/0114993 (2002-08-01), Miyaki et al.
patent: 09-055210 (1997-02-01), None

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