Fluidized air-depolarized electrodes and related apparatus and m

Details Fluidized air-depolarized electrodes and related apparatus and m Fluidized air-depolarized electrodes and related apparatus and m

1978-08-31

1980-06-10

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

429 27, 429 34, H01M 1206

Patent

active

042073820

ABSTRACT:
Improved oxygen-consuming electrochemical cells are provided with a fluidized-bed oxygen absorber (1), wherein electrolyte-wetted carrier particles (3), especially electronically conductive catalyst particles, are oxygen-enriched, and a substantially bubble-free fluidized-bed cathode (12), 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 (1) may be either separated from the cathode (12) or may form part of the same compartment (28), in which case an oxygen-permeable electrolyte-impermeable membrane (23) must be provided through which oxygen from ambient air may readily pass and be rapidly picked up and transported by the fluidized carrier particles (3).
The fluidization of the carrier particles (3) in the oxygen absorber (1) and the cathode (12) may be effected in a moving vehicle by an air interceptor means (6) which utilizes the pressure of airimpinging on such a vehicle to effect air flow in the absorber (1) and fludization within the cathode (12) without recourse to any significant auxiliary power.

REFERENCES:
patent: 2759038 (1956-08-01), Marsal
patent: 3409471 (1968-11-01), Sturm et al.
patent: 3525643 (1970-08-01), Spahrbier et al.
patent: 3594234 (1971-07-01), Lang et al.

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