Catalyzed, high energy density, metal-air battery
| DWPI Title: Catalyzed high energy density metal-air battery for e.g. electric vehicles, has porous cathode current collector arranged with air interface, where pores of porous cathode collector are functionalized with thiol group-containing species |
| Abstract: An air-cathode battery includes a porous cathode current collector with an air interface, an ionic liquid electrolyte disposed in pores of the porous cathode current collector; a metal anode, and a separator in contact with the ionic liquid electrolyte and coupled between the porous cathode current collector and the metal anode. The porous cathode current collector is an ionogel formed from a silica sol-gel or a carbonized resorcinol-formaldehyde aerogel and the pores are functionalized with a thiol group-containing species that is functionalized with one or more catalytic nanoparticles or the pores are electroplated with catalytic metal. |
| Use: Catalyzed high energy density metal-air battery for as electric vehicles, portable electronics, and military applications. |
| Advantage: The battery overcomes current lithium-air battery limitations by developing non-clogging, inherently safe, and mechanically robust functionalized cathode current collector in combination with air-stable, non-toxic electrolyte. The battery utilizes highly stable ionic liquid for the electrolyte to provide low volatility, high ionic conductivity, high thermal stability and a wide electrochemical window. |
| Novelty: The battery (100) has a porous cathode current collector (115) arranged with an air interface. Ionic liquid electrolyte (120) is filled in pores of the porous cathode current collector. A separator (125) is in contact with the ionic liquid electrolyte and coupled between the porous cathode current collector and a metal anode (110). The porous cathode current collector comprises ionogel comprising silica sol-gel, where the pores of the porous cathode current collector are functionalized with a thiol group-containing species that is functionalized with catalytic nanoparticles. |
| Filed: 4/10/2015 |
| Application Number: US14683490A |
| Tech ID: SD 12704.1 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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