Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Reexamination Certificate
2007-01-17
2010-11-02
Yuan, Dah-Wei D (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Electrode
C429S215000, C423S306000
Reexamination Certificate
active
07824802
ABSTRACT:
A method of preparing a composite cathode active material having superior cell characteristics includes mixing and milling starting material, carbon and an organic complexing agent. The mixture is heated at a first temperature in an inert atmosphere to form a composite precursor, and then the precursor is ground and heated at a second temperature in an inert atmosphere to produce a carbon-containing composite cathode material having high electronic conductivity. The said composite cathode has a general formula of LiFe1−xMxPO4—C, within 0≦x<1, M is selected from the group consisting of Co, Ni, V, Cr, Mn and a mixture thereof.
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Jow T. Richard
Xu Kang
Zhang Shengshui
Enin-Okut Edu E
Spevack Avrom David
The United States of America as represented by the Secretary of
Yuan Dah-Wei D
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