Electrical storage battery

• US 20040247995A1
• Filed: 06/07/2004
• Published: 12/09/2004
• Est. Priority Date: 06/09/2003
• Status: Abandoned Application

• Current Assignee: John L. Devitt
• Original Assignee: John L. Devitt
• Inventors: Devitt, John L.
• Application Number:
  US10/863,158
• Publication Number:
  US 20040247995A1
• Time in Patent Office: Days
• US Class Current: 429/66
• CPC Class Codes: H01M 50/112 Monobloc comprising multiple compartments
• CPC Class Codes: H01M 50/24 adapted for protecting batteries from their environment, e.g. from corrosion thermal insulation H01M10/658
• CPC Class Codes: H01M 50/627 Filling ports
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

The present invention relates generally to devices that are adapted to store energy. More specifically, one embodiment of the present invention is a battery that employs a plurality of compartments which hold cell elements that generate electricity through an electrochemical reaction. In addition, one embodiment of the present invention employs arcuate end compartments that are adapted to hold a non-compressible fluid that aids in the reaction of internal pressure loads generated by the electrochemical reaction. This fluid in one embodiment may be put in compression during manufacturing of the battery. Thus, the present invention enables the internal compartment walls to impart sufficient compression on the cell elements to enhance the battery'"'"'s efficiency and useful life.

Claims

1. A storage battery comprising:

a container having at least one cell compartment adapted for receiving an electrochemical cell element;

an electrochemical cell element situated in said cell compartment;

battery terminals in electrical communication with said cell element;

compression compartment positioned on at least one end of said at least one cell compartment, wherein said compression compartment includes an innermost wall facing said cell element and an outermost arcuate wall; and

a substantially incompressible filler material contained by said compression compartment, whereby forces acting upon said innermost wall of said compression compartment are transmitted generally through said filler material to said outermost arcuate wall, thereby substantially preventing said innermost wall from deflecting.

2. The storage battery of claim 1, wherein said incompressible filler material is comprised of at least one of a purified mineral oil, a salt solution, and a battery electrolyte.

3. The storage battery of claim 1, wherein said compression compartment is filled with liquid under a positive pressure sufficient to impart a substantially axial force onto said at least one cell compartment to compress said cell element situated therein.

4. The storage battery of claim 3, wherein the liquid is introduced into the compression compartment through a check valve, whereby said axial force is maintained subsequent to the filling of said compression compartment.

5. The storage battery of claim 1, wherein said compression compartment is partially filled with liquid, wherein the remaining volume is occupied by a gas that has been introduced to said compression compartment under positive pressure.

6. The storage battery of claim 1, wherein said outermost arcuate wall is generally in the shape of a right circular cylinder.

7. The storage battery of claim 1, wherein said compression compartment is selectively engaged to said at least one cell compartment.

8. The storage battery of claim 1, wherein said compression compartment further includes at least one stiffening member extending between said innermost wall and said outermost arcuate wall.

9. A shroud adapted for selective interconnection with a storage battery, comprising:

a left compression compartment that includes at least one interconnecting means;

a right compression compartment that includes at least one interconnecting means; and

at least one interconnecting device that selectively interconnects said interconnecting means of said left compression compartment and said right compression compartment, thereby adding additional strength along the longitudinal axis of the storage battery.

10. The shroud of claim 9, wherein said interconnecting means are bosses interconnected to said left compression compartment and said right compression compartment that selectively interconnect with corresponding slots on said at least one interconnecting device, wherein the distance between said left compression compartment and said right compression compartment accommodate the length of the storage battery.

11. The shroud of claim 9, wherein said left compression compartment and said right compression compartment are substantially hollow volumes that include an interior wall adapted to engage with the end wall of the storage battery and a generally arcuate wall interconnected to said interior wall.

12. The shroud of claim 11, wherein said arcuate walls of said left compression compartment and said right compression compartment employ a radius of curvature defined by a right circular cylinder.

13. The shroud of claim 9, wherein said left compression compartment and said right compression compartment are substantially filled with a substantially incompressible fluid.

14. The shroud of claim 13, wherein said substantially incompressible fluid comprises at least one of a purified mineral oil, a salt solution, and a battery electrolyte.

15. A storage battery housing, comprising:

a container having at least one cell compartment adapted for receiving an electrochemical cell element;

a leak-resistant compression compartment positioned at one end of said at least one cell compartment, wherein said compression compartment includes an innermost wall facing said cell element and an outermost arcuate wall; and

wherein said compression compartment is adapted to contain a substantially incompressible filler material, whereby forces acting upon said innermost wall of said compression compartment are transmitted generally through the filler material to said outermost arcuate wall, thereby substantially preventing said innermost wall from deflecting.

16. The storage battery housing of claim 15, wherein said compression compartment further includes a floor to define a volume, said volume being sealed a predetermined distance from said floor by a cover.

17. The storage battery housing of claim 16, wherein said cover is interconnected at least to said innermost wall with a heat weld.

18. The storage battery housing of claim 16, wherein said cover includes a groove adapted to receive a sealing device.

19. The storage battery housing of claim 15, wherein said compression compartment further includes two lateral walls positioned between said innermost wall and said outermost arcuate wall.

20. The storage battery housing of claim 19, wherein said innermost wall and said outermost arcuate wall are interconnected to said two lateral walls with fillets of a predetermined radius.

21. The storage battery housing of claim 15, wherein said outermost arcuate wall employs a radius of curvature defined by a right circular cylinder.