Fluidized air-depolarized electrodes and related apparatus and methods

Patent · Tue Jun 10 00:00:00 EDT 1980

OSTI ID:5761983

Zaromb, S

Improved oxygen-consuming electrochemical cells are provided with a fluidized-bed oxygen absorber, wherein electrolyte wetted carrier particles, especially electronically conductive catalyst particles, are oxygen-enriched, and a substantially bubble-free fluidized-bed cathode, wherein the oxygen transported by said carrier particles is electrochemically reduced. Carrier particles comprising activated carbon may provide sufficient surfaces area per unit weight to assure adequate oxygen transport. An intermediary oxidation-reduction couple may be included in the electrolyte to facilitate these oxygen-absorption and electro-reduction steps. The oxygen absorber may be either separated from the cathode or may form part of the same compartment, in which case an oxygen permeable electrolyte-impermeable membrane must be provided through which oxygen from ambient air may readily pass and be rapidly picked up and transported by the fluidized carrier particles. The fluidization of the carrier particles in the oxygen absorber and the cathode may be effected in a moving vehicle by an air interceptor means which utilizes the pressure of airimpinging on such a vehicle to effect air flow in the absorber and fludization within the cathode without recourse to any significant auxiliary power.

• Assignee: IFI; EDB-82-039640
• Patent Number(s): US 4207382
• OSTI ID: 5761983
• Resource Relation: Patent File Date: Filed date 31 Aug 1978
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
ELECTROCHEMICAL CELLS
ELECTRODES
DEPOLARIZATION
ABSORPTION
ACTIVATED CARBON
ALUMINIUM
CALCIUM
CARRIERS
CATALYSTS
ELECTRIC-POWERED VEHICLES
ELECTROLYTES
FLUID FLOW
FLUIDIZED BED
IRON
LITHIUM
OXYGEN
REDUCTION
SODIUM
ZINC
ADSORBENTS
ALKALI METALS
ALKALINE EARTH METALS
CARBON
CHEMICAL REACTIONS
ELEMENTS
METALS
NONMETALS
TRANSITION ELEMENTS
VEHICLES
250903* - Energy Storage- Batteries- Materials
Components
& Auxiliaries