Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Patent
1995-10-03
1998-05-12
Nuzzolillo, M.
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Electrode
429223, 429 2R, 423594, 423641, 420550, H01M 402
Patent
active
057502889
ABSTRACT:
The present invention relates to electrochemical cells, and more particularly to secondary lithium intercalation cells. Nickel is employed as a component "M" in an active cathode material represented by the formula Li.sub.x M.sub.y O.sub.z, where "x" and "y" are generally about 1, and "z" is generally about 2. In the present invention "M.sub.y " is divided into two components, a first major component of nickel, corresponding to at least 70% of "M.sub.y," and a second minor component comprising at least one of a non-transition metal selected from the group consisting of aluminum, gallium, tin, and zinc, and in some embodiments at least one transition metal selected from the group consisting of scandium and the Period 5 metals having atomic numbers between 39 and 42. A two-stage reaction process for making the compounds of the active cathode materials of the present invention is described.
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N
Ebner Walter B.
Fouchard David T.
Megahed El-Sayed
Xie Like
Frenchick Grady J.
Nuzzolillo M.
Rayovac Corporation
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