Cathode material for secondary batteries with non-aqueous...

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode

Reexamination Certificate

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C429S224000, C429S231950, C429S218100

Reexamination Certificate

active

07625670

ABSTRACT:
Provided are a cathode active material for a non-aqueous electrolyte lithium secondary battery, a process for preparing the same and a lithium secondary battery comprising the same. The cathode active material for a non-aqueous electrolyte lithium secondary battery is represented by the formula LiaNi1−(v+w+x+y+z)MnvCowMxM′yM″zO2wherein M, M′ and M″ are independently selected from the group consisting of Al, Mg, Sr, Ca, P, Pb, Y and Zr, and mixtures thereof, a is in a range of 0.9 to 1.05, 1−(v+w+x+y+z) is in a range of 0.685 to 0.745, v is in a range of 0.05 to 0.06, w is in a range of 0.20 to 0.24, and x+y+z is in a range of 0.005 to 0.015.

REFERENCES:
patent: 5914094 (1999-06-01), Sun et al.
patent: 2002/0031694 (2002-03-01), Van Berkel et al.
patent: 2005/0175897 (2005-08-01), Jung et al.
patent: 8-213015 (1996-08-01), None
patent: 11-45716 (1999-02-01), None
patent: 10-2004-20884 (2004-03-01), None
patent: 10-2004-95837 (2004-11-01), None
patent: 2006/095957 (2006-09-01), None
International Search Report in counterpart International Application No. PCT/KR2005/004594, dated Mar. 29, 2006.

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