Air depolarized electric cell

• US 3,928,072 A
• Filed: 07/18/1974
• Issued: 12/23/1975
• Est. Priority Date: 08/01/1973
• Status: Expired due to Term

• Current Assignee: Gerard Gerbier, Pierre Depoix
• Original Assignee: Gerard Gerbier, Pierre Depoix
• Inventors: Gerbier, Gerard, Depoix, Pierre
• Primary Examiner(s): Skapars, Anthony
• Application Number:
  US05/489,603
• Time in Patent Office: 523 Days
• Field of Search: 136/86A,135P,135R,107,13,14,157
• US Class Current: 429/505
• CPC Class Codes: H01M 12/06 with one metallic and one gaseous electrode
• CPC Class Codes: H01M 50/533 characterised by the shape of the leads or tabs
• CPC Class Codes: H01M 50/534 characterised by the material of the leads or tabs
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

Air depolarized electric cell comprising a negative electrode occupying a peripheral position, an electrolyte which is preferably gelled and a positive electrode mass occupying a central position within said negative electrode. The positive electrode is provided with a funnel in the center of the positive mass and with a metallic current collector disposed in the funnel in contact with walls of the funnel. The collector comprises a metallic wire in the form of a helix at least partially incrusted or embedded in the wall of the said funnel.

Claims

1. AIR DEPOLARIZED ELECTRIC CELL COMPRISING A NEGATIVE ELECTRODE OCCUPYING A PERIPHERAL POSITION, AN ELECTROLYTE AND A POSITIVE MASS OCCUPYING A PERIPHERAL POSITION, AN ELECTROLYTE AND ELECTRODE, SAID POSITIVE ELECTRODE HAVING A FUNNEL LOCATED IN THE CENTER OF THE POSITIVE MASS, A METALLIC CURRENT COLLECTOR DISPOSED IN SAID FUNNEL IN CONTACT WITH THE WALLS OF SAID FUNNEL, THE SAID CURRENT COLLECTOR COMPRISING AT LEAST ONE METALLIC WIRE

2. Electric cell according to claim 1, characterized in that the said metallic wire is completely embedded in the said positive mass.

3. Electric cell according to claim 2 characterized in that said wire is wound into a helical configuration forming a helix, said helix being located inside the funnel of said positive mass, the complete embedment of said wire in the internal walls of said funnel leaving said funnel free of any protuberances.

4. Electrical cell according to claim 3, characterized in that an end turn of the helix is also embedded in the positive active mass.

5. Electric cell according to claim 3, including positive and negative terminals for said cell and characterized in that an end of the helix is extended by a rectilinear part colinear with the axis of said helix and connected to the positive terminal of the electric cell.

6. Electric cell according to claim 3, including positive and negative terminals for said cell and characterized in that an end of the helix is extended by a rectilinear part, tangential to the helix and connected to the positive terminal of the electric cell.

7. ElectriC cell according to claim 1, characterized in that the said current collector is constituted by a helix comprised of a network of metallic wires.

8. Electric cell according to claim 1, characterized in that the said wire is at least at its surface, made of a metal selected from the group consisting of nickel, nickel-plated copper, nickel-plated iron and stainless steel.