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AssigneeBell Communications Research, Inc.
InventorsSophie Denis, Francois Orsini, Jean-Marie Tarascon, Marcel Touboul
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A method for preparing an amorphous ternary lithiated vanadium metal oxide of the formula Li.sub.x M.sub.y V.sub.z O.sub.(x+5z+ny)/2, where M is a metal, 0<x.ltoreq.3, 0<y.ltoreq.3, 1.ltoreq.z.ltoreq.4, and n=2 or 3, comprising the steps of creating an aqueous solution of at least one metavanadate salt selected from the group consisting of NH.sub.4 VO.sub.3 and NaVO.sub.3, and a nitrate salt of the formula M(NO.sub.3).sub.n containing a large excess of a lithium salt; heating the solution; adding a sufficient amount of a base to obtain a suitable pH; and precipitating the amorphous lithiated vanadium metal oxide. A rechargeable lithiated intercalation battery cell comprising a positive electrode, a negative electrode, and an electrolyte, wherein the active material of the negative electrode is an amorphous ternary lithiated vanadium metal oxide of the formula Li.sub.x M.sub.y V.sub.z O.sub.(x+5z+ny)/2 or an amorphous binary non-lithiated vanadium metal oxide of the formula M.sub.y V.sub.z O.sub.(5z+ny)/2, prepared according to the methods of the present invention.
A method for preparing an amorphous ternary lithiated vanadium metal oxide of the formula Li.sub.x M.sub.y V.sub.z O.sub.(x+5z+ny)/2, where M is a metal, 0<x.ltoreq.3, 0<y.ltoreq.3, 1.ltoreq.z.ltoreq.4, and n=2 or 3
A non-aqueous secondary battery cell comprising an active negative electrode material, an active positive electrode material, and an non-aqueous electrolyte
A non-aqueous secondary battery cell comprising an active negative electrode material, an active positive electrode material, and an non-aqueous electrolyte
Dependencies are inferred from the claim text.