Positive active material for rechargeable lithium battery
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United States of America Patent
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-
Sep 18, 2001
Grant Date -
N/A
app pub date -
Dec 9, 1999
filing date -
Dec 10, 1998
priority date (Note) -
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Abstract
A positive active material for a rechargeable lithium battery is provided. The positive active material is characterized by formulas 1 or 2. The positive active material exhibits good cycle life characteristics and high capacity. Li.sub.a Ni.sub.1-(x+y+z) Co.sub.x M.sub.y N.sub.z O.sub.b (1) (where 0.95.ltoreq.a.ltoreq.1.05, 0.01.ltoreq.x+y.ltoreq.0.5, 0
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