Lithium and vanadium oxide, a preparation method thereof and...

Details Lithium and vanadium oxide, a preparation method thereof and... Lithium and vanadium oxide, a preparation method thereof and...

2008-07-08

2008-07-08

Ryan, Patrick (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S232000, C429S217000, C429S231950, C423S594170, C423S641000

Reexamination Certificate

active

07396614

ABSTRACT:
A lithium and vanadium oxide is described having the formula Li1+xV3O8, wherein 0.1≦×≦0.25. The oxide has a monoclinic crystalline structure and comprises non-agglomerated grains in the form of monocrystalline pellets having a length L of between 1 and 100 μm, a width W such that 4<L/W<100, and a thickness t such that 4 L/t<100, with t<W, the elongation axis of the pellets being axis b of the monoclinic cell. The oxide may be prepared by mixing the Li and V precursors, without grinding or compression, heating said mixture to 565° C.-585° C. and de-agglomerating the product obtained. The oxide is suitable for use as an active material for the positive electrode of a lithium battery.

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Zhang et al., “Spectroscopic investigation of Li1+xV3O8,” Electrochimica ACTA, Elsevier Science Publishers, Barking, GB, vol. 43, No. 8, pp. 861-868, 1998.
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Search Report issued in International Application No. PCT/FR02/03424.

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