METHOD AND APPARATUS FOR SUPPLYING ENTIRELY OR SUBSTANTIALLY ENTIRELY CONSUMABLE METALLIC MATERIAL TO A MAGNETIC ELECTRODE IN A METAL/OXYGEN OR METAL/AIR CELL

• US 3,811,952 A
• Filed: 06/20/1973
• Issued: 05/21/1974
• Est. Priority Date: 10/08/1970
• Status: Expired due to Term

• Current Assignee: Karl Gunnar Tell, Olle Lennart Siwersson
• Original Assignee: Karl Gunnar Tell, Olle Lennart Siwersson
• Inventors: Siwersson, Olle Lennart, Tell, Karl Gunnar
• Primary Examiner(s): McCarthy, Helen M.
• Assistant Examiner(s): Feeley, H. A.
• Application Number:
  US05/371,618
• Time in Patent Office: 335 Days
• Field of Search: 136/86A,86E,86R
• US Class Current: 429/10
• CPC Class Codes: H01M 8/225 Fuel cells in which the fuel is based on materials comprising particulate active material in the form of a suspension, a dispersion, a fluidised bed or a paste
• CPC Class Codes: Y02E 60/50 Fuel cells

Abstract

A method and apparatus for supplying substantially entirely consumable metallic material to a magnetic electrode in a metal/oxygen cell which also includes an oxidizing agent electrode and an electrolyte, comprises supplying the metallic material in the form of particles having ferromagnetic properties and in such proximity to the magnetic electrode that the particles are attracted by and retained to it.

Claims

2. The method of claim 1, further characterized by the substantially complete consuming of said metallic material on said magnetic electrode taking place during each full rotation of said electrode.

3. The method of claim 1, further characterized by said rotatable magnetic electrode being in the form of a disc.

4. The method of claim 1, further characterized by said coating and recoating over the surface of said magnetic electrode taking place in a continuous manner.

5. The method of claim 1, further characterized by said coating and recoating over the surface of said magnetic electrode taking place over continuous subsequent sections of said surface.

6. A metal-oxygen cell comprising an oxidizing agent electrode, a magnetic electrode mounted for rotation, an electrolyte connecting said electrodes, metallic material in the form of particles having ferromagnetic properties, means to supply said metallic material in the form of particles having ferromagnetic properTies to said magnetic electrode to allow attraction to and coating of a part of the surface of said magnetic electrode with said particles in a proportion to allow consumption of said particles by the time said magnetic electrode completes that part of a revolution up to one revolution which returns said part of the surface to magnetic attraction distance of said supply means, and means to remove from the cell said metallic material that has been consumed and changed its form.

7. The metal-oxygen cell of claim 6, further characterized by said magnetic electrode being a disc.

8. The metal-oxygen cell of claim 6, further characterized by said metallic material being iron particles.

9. The metal-oxygen cell of claim 6, further characterized by said oxidizing agent electrode including air supplied to the cell.

10. The metal-oxygen cell of claim 6, further characterized by said particles of metallic material having non-ferromagnetic coatings of metallic material.

11. The metal-oxygen cell of claim 6, further characterized by said supply means having a plurality of inlets in the path of rotation of said magnetic electrode spaced where consumption of particles on said magnetic electrode has been completed and said particles have already fallen from said magnetic electrode.