The precursor composite of claim 1, wherein the C:O ratio of the graphene oxide is between 2.7 and 3.1; preferably between 2.9 and 3.1.

The precursor composite of claim 1, wherein the particles of tetravalent vanadium oxohydroxide have an anisotropic morphology, preferably a fibrous morphology.

The precursor composite of claim 1, wherein the tetravalent vanadium oxohydroxide consists of H₄V308..

The precursor composite of claim 1 incorporating at least one further EAM in form of nanoparticles, said EAM being selected from the croup group consisting of transition metal oxides oxide nanoparticles, transition metal phosphates phosphate 2 AMENDMENT UNDER 37 C.F.R. § 1.111 Attorney Docket No.: Q₂₀₈₅₈₁ App l n. No.: 14/100,858 nanoparticles, transition metal chalcogenides chalcogenide nanoparticles, transition metal halides halide nanoparticles, silicon nanoparticles, metallic nanoparticles, semiconducting particles nanoparticles and combinations thereof.

A method for preparing the precursor composite of claim 1, wherein the method comprises the step of-mixing tetravalent vanadium oxohydroxide with an aqueous graphene oxide solution.

A method for producing an electrode material from the precursor composite of claim 1, the method comprising the steps of (a) drying the precursor composite; (b) heating the dry precursor composite to a temperature of at least 50 ° C but below the decomposition temperature of the vanadium oxohydroxide and for a time sufficient to induce the a desired reduction of the graphene oxide with respective change in the oxidation state of the transition metal in the vanadium oxohydroxide.

The precursor composite of claim 1, wherein the C:O ratio of the graphene oxide is between 2.9 and 3.1.

The precursor composite of claim 1, wherein the particles of tetravalent vanadium oxohydroxide have a fibrous morphology.

The precursor composite of claim 1, wherein the C:O ratio of the graphene oxide is between 2.7 and 3.1; preferably between 2.9 and 3.1.

The precursor composite of claim 1, wherein the particles of tetravalent vanadium oxohydroxide have an anisotropic morphology, preferably a fibrous morphology.

The precursor composite of claim 1, wherein the tetravalent vanadium oxohydroxide consists of H₄V308..

The precursor composite of claim 1 incorporating at least one further EAM in form of nanoparticles, said EAM being selected from the croup group consisting of transition metal oxides oxide nanoparticles, transition metal phosphates phosphate 2 AMENDMENT UNDER 37 C.F.R. § 1.111 Attorney Docket No.: Q₂₀₈₅₈₁ App l n. No.: 14/100,858 nanoparticles, transition metal chalcogenides chalcogenide nanoparticles, transition metal halides halide nanoparticles, silicon nanoparticles, metallic nanoparticles, semiconducting particles nanoparticles and combinations thereof.

A method for preparing the precursor composite of claim 1, wherein the method comprises the step of-mixing tetravalent vanadium oxohydroxide with an aqueous graphene oxide solution.

A method for producing an electrode material from the precursor composite of claim 1, the method comprising the steps of (a) drying the precursor composite; (b) heating the dry precursor composite to a temperature of at least 50 ° C but below the decomposition temperature of the vanadium oxohydroxide and for a time sufficient to induce the a desired reduction of the graphene oxide with respective change in the oxidation state of the transition metal in the vanadium oxohydroxide.

The precursor composite of claim 1, wherein the C:O ratio of the graphene oxide is between 2.9 and 3.1.

The precursor composite of claim 1, wherein the particles of tetravalent vanadium oxohydroxide have a fibrous morphology.

The precursor composite of claim 1, wherein the C:O ratio of the graphene oxide is between 2.7 and 3.1; preferably between 2.9 and 3.1.

The precursor composite of claim 1, wherein the particles of tetravalent vanadium oxohydroxide have an anisotropic morphology, preferably a fibrous morphology.

The precursor composite of claim 1, wherein the tetravalent vanadium oxohydroxide consists of H₄V308..

The precursor composite of claim 1 incorporating at least one further EAM in form of nanoparticles, said EAM being selected from the croup group consisting of transition metal oxides oxide nanoparticles, transition metal phosphates phosphate 2 AMENDMENT UNDER 37 C.F.R. § 1.111 Attorney Docket No.: Q₂₀₈₅₈₁ App l n. No.: 14/100,858 nanoparticles, transition metal chalcogenides chalcogenide nanoparticles, transition metal halides halide nanoparticles, silicon nanoparticles, metallic nanoparticles, semiconducting particles nanoparticles and combinations thereof.

A method for preparing the precursor composite of claim 1, wherein the method comprises the step of-mixing tetravalent vanadium oxohydroxide with an aqueous graphene oxide solution.

A method for producing an electrode material from the precursor composite of claim 1, the method comprising the steps of (a) drying the precursor composite; (b) heating the dry precursor composite to a temperature of at least 50 ° C but below the decomposition temperature of the vanadium oxohydroxide and for a time sufficient to induce the a desired reduction of the graphene oxide with respective change in the oxidation state of the transition metal in the vanadium oxohydroxide.

The precursor composite of claim 1, wherein the C:O ratio of the graphene oxide is between 2.9 and 3.1.

The precursor composite of claim 1, wherein the particles of tetravalent vanadium oxohydroxide have a fibrous morphology.

The precursor composite of claim 1, wherein the C:O ratio of the graphene oxide is between 2.7 and 3.1; preferably between 2.9 and 3.1.

The precursor composite of claim 1, wherein the particles of tetravalent vanadium oxohydroxide have an anisotropic morphology, preferably a fibrous morphology.

The precursor composite of claim 1, wherein the tetravalent vanadium oxohydroxide consists of H₄V308..

The precursor composite of claim 1 incorporating at least one further EAM in form of nanoparticles, said EAM being selected from the croup group consisting of transition metal oxides oxide nanoparticles, transition metal phosphates phosphate 2 AMENDMENT UNDER 37 C.F.R. § 1.111 Attorney Docket No.: Q₂₀₈₅₈₁ App l n. No.: 14/100,858 nanoparticles, transition metal chalcogenides chalcogenide nanoparticles, transition metal halides halide nanoparticles, silicon nanoparticles, metallic nanoparticles, semiconducting particles nanoparticles and combinations thereof.

A method for preparing the precursor composite of claim 1, wherein the method comprises the step of-mixing tetravalent vanadium oxohydroxide with an aqueous graphene oxide solution.

A method for producing an electrode material from the precursor composite of claim 1, the method comprising the steps of (a) drying the precursor composite; (b) heating the dry precursor composite to a temperature of at least 50 ° C but below the decomposition temperature of the vanadium oxohydroxide and for a time sufficient to induce the a desired reduction of the graphene oxide with respective change in the oxidation state of the transition metal in the vanadium oxohydroxide.

The precursor composite of claim 1, wherein the C:O ratio of the graphene oxide is between 2.9 and 3.1.

The precursor composite of claim 1, wherein the particles of tetravalent vanadium oxohydroxide have a fibrous morphology.