C - Chemistry – Metallurgy – 01 – D
Patent
C - Chemistry, Metallurgy
01
D
C01D 15/02 (2006.01) C01G 51/04 (2006.01) C01G 53/04 (2006.01) H01M 4/48 (2006.01) H01M 4/52 (2006.01)
Patent
CA 2043892
ABSTRACT OF THE DISCLOSURE The invention provides an essentially layered lithium transition metal oxide compound and a method of making it. It comprises lithium cations, transition metal cations T and oxygen anions, the transition metal cations T having an average valency of from +3 to +4. It has its O anions arranged in layers in a substantially cubic-close-packed arrangement, with its Li cations being arranged in layers and its T cations occupying octahedral sites and being arranged in layers. Each layer of the Li cations is sandwiched between two layers of the O anions and each said layer of O anions is sandwiched between a said layer of Li cations and a layer of the T cations. 75% - 99,8% of the T cations in the compound are located in the layers of T cations, and the remainder of the T cations are located in the layers of Li cations, the T cations being selected from Co cations and mixtures of Co and hi cations.
Gummow Rosalind June
Thackeray Michael Makepeace
Marcus & Associates
Technology Finance Corporation (proprietary) Limited
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