Electrodes comprising mixed active particles

Details Electrodes comprising mixed active particles Electrodes comprising mixed active particles

2006-05-09

2006-05-09

Kopec, Mark (Department: 1751)

Compositions

Electrically conductive or emissive compositions

Metal compound containing

C252S518100, C252S521200, C429S218100, C429S224000

Reexamination Certificate

active

07041239

ABSTRACT:
Electrode active materials comprising two or more groups of particles having differing chemical compositions, wherein each group of particles comprises a material selected from:(a) materials of the formula A1aM1b(XY4)cZd; and(b) materials of the formula A2eM2fOg; andwherein(i) A1, A2, and A3are Li, Na, or K;(ii) M1and M3comprise a transition metal;(iv) XY4a phosphate or similar moiety; and(v) Z is OH, or halogen.In a preferred embodiment, A2eM3fOgis A3hMniO4having an inner and an outer region, wherein the inner region comprises a cubic spinel manganese oxide, and the outer region comprises a manganese oxide enriched in Mn+4relative to the inner region. In a preferred embodiment, the compositions also comprise a basic compound.

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