Titania-graphene anode electrode paper
AssigneeBattelle Memorial Institute
InventorsJun Liu, Daiwon Choi, Wendy D Bennett, Gordon L Graff, Yongsoon Shin
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Abstract
A method for forming a nanocomposite material, the nanocomposite material formed thereby, and a battery made using the nanocomposite material. Metal oxide and graphene are placed in a solvent to form a suspension. The suspension is then applied to a current collector. The solvent is then evaporated to form a nanocomposite material. The nanocomposite material is then electrochemically cycled to form a nanocomposite material of at least one metal oxide in electrical communication with at least one graphene layer.
Claims16
A method for forming a nanocomposite material comprising the steps of:
- dispersing qraphene with a surfactant forming a first mixture;
- providing a metal oxide in an aqueous solution to form a second mixture;
- adding the second mixture to the first mixture to form a metal oxide and qraphene nanocomposite;
- adding the metal oxide and graphene nanocomposite to a solvent to form a suspension;
- applying the suspension to a current collector;
- and
- evaporating the solvent to form a dried metal oxide and graphene nanocomposite material wherein the metal oxide is in electrical communication with at least one graphene layer.
A method for forming a nanocomposite material comprising the steps of:
- dispersing graphene with a surfactant forming a first mixture;
- providing an aqueous second mixture of metal oxide;
- adding the second mixture to the first mixture to form a metal oxide and graphene nanocomposite;
- adding the metal oxide and graphene nanocomposite to solvent to form a suspension, applying the suspension to a current collector,
- evaporating the solvent to form an anode,
- connecting the anode to a cathode having lithium ions and an electrolyte to form a battery, and
- electrochemically cycling the anode to form a nanocomposite material comprising at least one metal oxide in electrical communication with at least one graphene layer.
A method for forming a nanocomposite material comprising:
- dispersing graphene with a surfactant to form a first mixture;
- mixing titanium dioxide and water to form a second mixture;
- combining the second mixture into the first mixture to form a suspension;
- filtering the suspension and calcining the residue to form a titanium dioxide and graphene nanocomposite material wherein the titanium dioxide is in electrical communication with at least one graphene layer;
- mixing the titanium dioxide and graphene nanocomposite material with a solvent to form a slurry;
- applying the slurry to a current collector;
- and
- evaporating the solvent to form an anode.
Dependencies are inferred from the claim text.