Nonaqueous cell using mixed metal oxide positive electrode
AssigneeAT&T Bell Laboratories
InventorsRobert J. Cava, Donald W. Murphy
Life of this patent
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Abstract
It has been found that mixed metal oxides such as vanadium tungsten oxides or titanium niobium oxides, having the stoichiometry xM.sup.A O.sub.2 . Y.sub.2.sup.B O.sub.5 . zM.sup.C O.sub.3 constitute useful active positive electrode material in nonaqueous cells.
Claims14
A nonaqueous cell comprising a negative electrode, an electrolyte and a positive electrode, said positive electrode active material comprising material of at least one Wadsley phase having the nominal atom composition xM.sup.A O.sub.2.yM.sub.2.sup.B O.sub.5.zM.sup.C O.sub.3, at least two of x, y, and z are nonzero, x+y+z=1.0 and at least two metal elements M are present, wherein
- M.sup.A is at least one element selected from the group consisting of the elements of Groups IVB, VB and VIB of the periodic table,
- M.sup.B is at least one element selected from the group consisting of the elements of Groups VB and VIB of the periodic table, and
- M.sup.C is at least one element selected from the group consisting of the elements of group VIB of the periodic table.
Dependencies are inferred from the claim text.