Metal oxide-hydrogen battery having modules extending longitudinally of the pressure vessel

• US 5,162,171 A
• Filed: 10/28/1991
• Issued: 11/10/1992
• Est. Priority Date: 10/28/1991
• Status: Expired due to Term

• Current Assignee: Johnson Controls Technology Company (Johnson Controls International plc)
• Original Assignee: Globe-Union Inc.
• Inventors: Jones, Kenneth R.
• Primary Examiner(s): Skapars, Anthony
• Application Number:
  US07/783,152
• Time in Patent Office: 379 Days
• Field of Search: 429/101, 429/120, 429/26, 429/27, 429/34
• US Class Current: 429/101
• 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 10/345 Gastight metal hydride accumulators
• CPC Class Codes: H01M 10/613 Cooling or keeping cold
• CPC Class Codes: H01M 10/62 specially adapted for specific applications
• CPC Class Codes: H01M 10/64 characterised by the shape of the cells
• CPC Class Codes: H01M 10/647 Prismatic or flat cells, e.g. pouch cells
• CPC Class Codes: H01M 10/6554 Rods or plates
• CPC Class Codes: H01M 10/6555 arranged between the cells
• CPC Class Codes: H01M 50/50 Current conducting connections for cells or batteries
• 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 metal oxide-hydrogen battery having an outer sealed pressure vessel including a generally cylindrical shell. A plurality of generally rectangular cell modules are disposed in the shell and extend longitudinally of the shell. Each cell module has at least one positive electrode and a negative electrode. Separating the cell modules are heat transfer fins composed of a material having a high coefficient of thermal conductivity. The opposed edges of each fin are provided with flexible flanges that engage and complement the inner surface of the cylindrical pressure vessel shell and serve to transfer heat from the cell modules to the vessel shell.

Claims

1. In a metal oxide-hydrogen battery, an outer pressure vessel including a generally cylindrical shell, at least one cell module disposed in said shell and including a positive electrode and a negative electrode, said cell module being generally rectangular in shape and extending longitudinally of the axis of the shell, heat transfer means disposed flatwise on a side of said cell module and having opposed ends disposed in engagement with the inner surface of said cylindrical shell, said heat transfer means being composed of a material having a high coefficient of thermal conductivity for transferring of heat from said cell module to said shell.

2. The battery of claim 1, and including flexible flanges on said opposed ends of said heat transfer means each flange being disposed in contact with the inner surface of said shell.

3. The battery of claim 2, and including a pair of said flanges on each of said opposed ends, the flexible flanges on each end extending laterally of said heat transfer means in opposite directions.

4. The battery of claim 1, wherein said heat transfer means comprises a flat body portion and flanges disposed on opposed ends of said body portion, flanges on each end extending laterally of said body portion in opposite directions and disposed in biased contact with the inner surface of said shell.

5. The battery of claim 2, wherein each flange is provided with at least one discontinuity to divide said flange into a plurality of flange sections, said flange sections being flexible and characterized by the ability to follow variations in diameter of said shell.

6. The battery of claim 1, and including electrical connecting means for connecting said electrodes in an electrical circuit.

7. The battery of claim 1, and including means for preventing longitudinal displacement of said cell module in said shell.

8. The battery of claim 7, wherein said means for preventing longitudinal displacement comprises a support disposed at an end of said cell module, said support having a peripheral section secured to the shell and having a chordwise section secured to said cell module.

9. In a metal oxide-hydrogen battery, an outer pressure vessel including a generally cylindrical shell, a plurality of cell modules disposed in a side-by-side stacked relation in said shell, said cell modules being generally rectangular in configuration and extending longitudinally of said shell, each cell module including a positive electrode and a negative electrode, a heat transfer fin disposed flatwise between adjacent cell modules in said stack, each fin having a pair of opposed ends, a generally flexible flange on each of said opposed ends of each fin, said flanges being disposed in contact with the inner surface of said shell, and electrical connecting means connecting said electrodes in an electrical circuit.

10. The battery of claim 9, and including means for preventing longitudinal displacement of said cell modules in said shell.

11. The battery of claim 9, in which each of said ends has a pair of flanges, a first of said pair of flanges extending laterally in one direction from said end and a second of said pair of flanges extending laterally in the opposite direction from said end.

12. The battery of claim 9, wherein the flanges on said ends extend laterally in the same direction from the fin.

13. The battery of claim 9, wherein each flange comprises a plurality of spaced flange sections, said flange sections being flexible and being biased into contact with the inner surface of said shell, said flanges having the ability to follow expansion in diameter of said shell when said shell is pressurized.

14. The battery of claim 10, wherein said means for preventing longitudinal displacement of said stack of cell modules comprises a support disposed adjacent an end of said stack and having a peripheral portion secured to the inner surface of said shell and having a second section secured to said stack.

15. The battery of claim 14, wherein said electrical conducting means comprises a tie rod connected to said positive and negative electrodes and extending through an opening in said second section of said support.

16. In a metal oxide-hydrogen battery, an outer pressure vessel including a generally cylindrical shell, a plurality of cell modules disposed in side-by-side stacked relation in said shell, each cell module being generally rectangular in configuration and extending longitudinally of the axis of said shell, each cell module having a plurality of positive electrodes and a plurality of negative electrodes, each cell module including a pair of opposed first edges extending parallel to the axis of said shell and a pair of opposed second edges connecting said first edges and extending transversely of said axis, a heat transfer fin disposed flatwise between each adjacent pair of cell modules with each fin having opposed ends projecting beyond the first edges of said cell modules, a flexible flange connected to each of said ends of said fins and disposed in engagement with the inner surface of said cylindrical shell, a plurality of positive tabs connected to the positive electrodes of each cell module, a plurality of negative tabs connected to the negative electrodes of each cell module, said tabs projecting beyond the second edges of said cell modules, electrical connecting means extending transversely of the shell and connecting said tabs in an electrical circuit, and support means interconnecting said electrical connecting means and said shell for preventing longitudinal displacement of said cell modules within said shell, said support means being insulated from said electrical conducting means.

17. The battery of claim 16, wherein said support means has a generally circular outer section engaged with the inner surface of the shell, and a pair of parallel legs extending chordwise of said outer surface and attached to said electrical conducting means.