Patent ID: 6589499
Filing Date: 2003-07-08
Classification: C01G,C01P,H01M,Y02E

Abstract:
A compound having the formula Li&agr;Co&bgr;A&ggr;O2, wherein A is one or more dopants having an average oxidation state N such that +2.5&lE;N&lE;+3.5, 0.90&lE;&agr;&lE;1.10, &bgr;>0, &ggr;&gE;0 and &bgr;+&ggr;=1, said compound having a substantially single phase, hexagonal layered crystal structure and being substantially free of localized cubic spinel-like structural phases and wherein, in the powder x-ray diffraction pattern, there are no diffraction peaks at a smaller scattering angle than the diffraction peak corresponding to Miller indices (003).