Rapidly refuelable fuel cell

• US 4,560,626 A
• Filed: 09/20/1982
• Issued: 12/24/1985
• Est. Priority Date: 09/20/1982
• Status: Expired due to Fees

• Current Assignee: The United States of America As Represented By The Secretary of Agriculture
• Original Assignee: United States Department of Energy (Government of the United States of America)
• Inventors: Joy, Richard W.
• Primary Examiner(s): Walton, Donald L.
• Application Number:
  US06/420,053
• Time in Patent Office: 1,191 Days
• Field of Search: 429/19, 429/12, 429/27, 429/28, 429/66, 429/36
• US Class Current: 429/443
• CPC Class Codes: H01M 10/0413 Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
• CPC Class Codes: H01M 10/0468 Compression means for stacks of electrodes and separators
• CPC Class Codes: H01M 12/065 with plate-like electrodes or stacks of plate-like electrodes
• CPC Class Codes: H01M 2004/024 Insertable electrodes
• CPC Class Codes: H01M 6/50 Methods or arrangements for servicing or maintenance, e.g. for maintaining operating temperature constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product

Abstract

A rapidly refuelable dual cell of an electrochemical type wherein a single anode cooperates with two cathodes and wherein the anode has a fixed position and the cathodes are urged toward opposite faces of the anodes at constant and uniform force. The associated cathodes are automatically retractable to permit the consumed anode remains to be removed from the housing and a new anode inserted between the two cathodes.

Claims

1. A refuelable fuel cell comprising a housing including two opposite walls, an anode support carried by one of said walls within said housing and generally defining the position of an anode within said housing, an anode supply opening in the other of said walls in alignment with said anode support, a pair of cathodes positioned on opposite sides of said anode position for cooperation with an anode to form dual cells, pressure means for separately urging each cathode at a constant force towards said anode position, and means for supplying an electrolyte between each of said cathodes and said anode position.

2. A fuel cell in accordance with claim 1 wherein said pressure means is in the form of an inflatable member.

3. A fuel cell in accordance with claim 1 wherein said pressure means is collapsible, and there are means resiliently urging said cathodes to retracted positions.

4. A fuel cell in accordance with claim 1 wherein there is an anode positioned between said cathodes on said support, and said anode support is positioned to maintain said anode in a centered position between said cathodes.

5. A fuel cell in accordance with claim 4 wherein there is a current collector between each cathode and said anode.

6. A fuel cell in accordance with claim 4 wherein each cathode is carried by a cathode support and there are seals between each cathode support and said housing defining an electrolyte path traversely of said housing between said cathodes and around said anode.

7. A fuel cell in accordance with claim 6 wherein said housing is elongated and contains a plurality of said dual cells in adjacent back-to-back relation, and at least certain of said pressure means are disposed between adjacent cathode supports of adjacent dual cells and react simultaneously on both such cathode supports.

8. A fuel cell in accordance with claim 4 wherein said housing is elongated and contains a plurality of said dual cells in adjacent back-to-back relation, and at least certain of said pressure means are disposed between adjacent cathodes of adjacent dual cells and react simultaneously on both such cathodes.

9. A fuel cell in accordance with claim 1 wherein said housing is elongated and contains a plurality of said dual cells in adjacent back-to-back relation, and at least certain of said pressure means are disposed between adjacent cathodes of adjacent dual cells and react simultaneously on both such cathodes.

10. A fuel cell in accordance with claim 9 together with means for supplying a reactive fluid to said adjacent cathodes between said adjacent cathodes.