Supercapacitor battery
AssigneeImam Abdulrahman Bin Faisal University
InventorsEmre CEVIK, Ayhan BOZKURT
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Abstract
A nanocomposite electrode including a substrate, a binding compound, a conductive additive, and NiO/Fe2VO4 nanoparticles. The NiO/Fe2VO4 nanoparticles have a substantially spherical shape. A mixture of the binding compound, the conductive additive and the NiO/Fe2VO4 nanoparticles, is at least partially coated on a first surface of the substrate. A method of making the NiO/Fe2VO4 nanoparticles is described.
Claims20
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The battery of claim 14, wherein the NiO/Fe2 VO4 nanoparticles have an average diameter of 1-20 nanometers (nm).
The battery of claim 14, wherein the NiO/Fe2 VO4 nanoparticles are aggregated and have an average aggregate size of 1 to 50 micrometers (μm).
The battery of claim 14, wherein the NiO/Fe2VO4 nanoparticles are aggregated and form an interconnected chain.
The battery of claim 14, wherein the NiO/Fe2VO4 nanoparticles form an interconnected chain while dispersed in a matrix of the conductive additive.
The battery of claim 14, wherein the mixture comprises 5-10 wt. % of the binding compound, 70-90 wt. % of the conductive additive, and 1-20 wt. % of the NiO/Fe2VO4 nanoparticles, based on a total weight of the mixture.
The battery of claim 14, wherein the mixture comprises 70-90 wt. % C, 0.5-5 wt. % V, 1-10 wt. % Fe, and 1-10 wt. % Ni based on the total weight of the mixture.
The battery of claim 14, wherein the elements V, C, Fe, and Ni are homogeneously distributed on the first surface of the substrate.
The battery of claim 14, wherein the substrate is made from at least one material selected from the group consisting of stainless steel, aluminum, nickel, copper, platinum, zinc, tungsten, and titanium.
The battery of claim 14, wherein the conductive additive is at least one selected from the group consisting of graphite, activated carbon, reduced graphene oxide, carbon nanotubes, carbon nanofibers, and carbon black.
The battery of claim 14, wherein the binding compound is at least one selected from the group consisting of polyvinylidene fluoride (PVDF) and N-methyl pyrrolidone (NMP).
The battery of claim 14, wherein the first surface of the substrate is hydrophilic.
The battery of claim 14, wherein the first surface of the substrate has a water contact angle less than 37°.
A battery comprising a plurality of supercapacitor devices, each supercapacitor device comprising:
- two symmetrically facing nanocomposite electrodes, wherein each nanocomposite electrode comprises:
- a substrate;
- a binding compound;
- a conductive additive;
- and
- NiO/Fe2VO4 nanoparticles,
- wherein the NiO/Fe2 VO4 nanoparticles have a substantially spherical shape,
- wherein a mixture of the binding compound, the conductive additive and the NiO/Fe2VO4 nanoparticles is at least partially coated on a first surface of the substrate, and
- wherein the first surfaces of the nanocomposite electrodes coated with the mixture face inwards;
- and
- wherein an anhydrous gel electrolyte is disposed between and is in contact with the first surfaces;
- and
- wherein a permeable membrane comprising the anhydrous gel electrolyte separates the first surface of the first substrate and the first surface of the second substrate.
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Dependencies are inferred from the claim text.