Lead-acid storage cell grid

• US 5,264,306 A
• Filed: 01/09/1991
• Issued: 11/23/1993
• Est. Priority Date: 11/14/1988
• Status: Expired due to Term

• Current Assignee: Mixon, Inc.
• Original Assignee: Mixon, Inc.
• Inventors: Mixon, Gordon W. Jr., Walker, Thomas J. Jr., Cordes, William A.
• Primary Examiner(s): Skapars, Anthony
• Application Number:
  US07/639,573
• Time in Patent Office: 1,049 Days
• Field of Search: 429/160, 429/161, 429/211, 429/178, 429/179, 429/233, 429/239, 429/241-244, 429/204, 429/225
• US Class Current: 429/160
• CPC Class Codes: H01M 10/12 Construction or manufacture
• CPC Class Codes: H01M 4/73 for lead-acid accumulators, e.g. frame plates
• CPC Class Codes: H01M 4/82 Multi-step processes for manufacturing carriers for lead-acid accumulators
• CPC Class Codes: H01M 50/536 characterised by the method of fixing the leads to the electrodes, e.g. by welding
• CPC Class Codes: H01M 50/541 for lead-acid accumulators
• 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

Improved lead acid storage cell grid for a storage battery which includes a tab extending upwardly and at right angles from a slotted cell grid. A plurality of like polarity positive or negative interleaved battery grids in a cell are joined into combined tab buses which are then joined to adjacent battery cells to form an internal series connection of the battery cells, thus eliminating the requirement for a top bar current collector and intercell connector.

Claims

1. Battery for a vehicle comprising:

a. a battery case with at least one compartment and acid in said compartment;

b. a plurality of positive grids in said compartment, each of said positive grids having a mean plane and a matrix of raised and lowered portions with respect to said mean plane, said raised and lowered portions forming slots therebetween, and each of said grids having an upwardly extending wide integral positive tab, each of said positive tabs electromechanically connected together by at least two spot welds;

c. a plurality of negative grids in said compartment, each of said negative grids having a mean plane and a matrix of raised and lowered portions with respect to said mean plane and an upwardly extending wide integral negative tab, each of said negative tabs electromechanically connected together by at least two spot welds and interleaved with each of said positive grids;

d. a chemical paste over and about each of said grids, and over, about and within each of said slots;

e. said positive grid tabs interconnected to said adjoining negative grid tabs between and through said adjoining cells;

f. a cover over said case; and

,

g. terminal posts connected to each of said connected tabs in said case and extending either through said cover or through the side or end of said case.

2. Battery of claim 1 wherein each of said grid plates are pure lead.

3. The battery of claim 1, wherein said raised and lowered portions are arranged in rows, and alternating with said rows for neutral portions approximately in said mean plane and forming neutral rows for conducting current to said tabs.

4. The battery of claim 1, wherein each of the tabs is half the plate with minus clearance in width.

5. Battery for a vehicle comprising:

a. a battery case with at least one compartment and acid in said compartment;

b. a plurality of positive grids in said compartment, each of said positive grids having a mean plane and a matrix of raised and lowered portions with respect to said mean plane, said raised and lowered portions forming slots therebetween, and each of said grids having ann upwardly extending wide integral positive tab of approximately 2 1/2"×

3", each of said positive tabs electromechanically connected together by at least two spot welds;

c. a plurality of negative grids in said compartment, each of said negative grids having a mean plane and a matrix of raised and lowered portions with respect to said mean plane, and an upwardly extending wide integral negative tab of approximately 2 1/2"×

3", each of said negative tabs electromechanically connected together by at least two spot welds and interleaved with each of said positive grids;

d. a chemical paste over and about each of said grids, and over, about and within each of said slots;

e. said positive grid tabs interconnected to said adjoining negative grid tabs between and through said adjoining cells;

f. a cover over said case; and

,

g. terminal posts connected to each of said connected tabs in said case and extending either through said cover or through the side or end of said case.