Patent US4239839A successfully refreshed from Google Patents.
US4239839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-cell batteries
Assignee: Dunlop Australia Ltd
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Filing: 1979-05-30
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Granted: 1980-12-16
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Expires: 1999-05-30
Abstract
Abstract A multi-cell battery constructed of a plurality of frames of insulating material each frame having a number of active battery material areas arranged side by side with a division portion between each material area, the frames being arranged side by side in a direction normal to the plane of the frame with the division portions secured in sealed relation to form partitions between adjacent cells of the battery. The active battery material in respective areas being selected so that adjacent areas in each frame are of opposite polarity and adjacent areas in adjoining frames are of opposite polarity. A barrier frame interposed between and secured to two frames in the assembly forming a chemical and electrical barrier between the active battery material in frames on opposite sides of the barrier member so that the assembly of frames forms two batteries of equal nominal voltage.
Inventors
- 👤 William L. McDowall
- 👤 Alan K. Maplesden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:32
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/04; H01M10/0413; H01M10/06; H01M10/12; H01M10/122; H01M10/42; H01M10/4207; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
263 words
A multi-cell battery comprising: a first assembly of frames, a second assembly of frames, and barrier means interposed between said first and second assemblies of frames for electrically and chemically isolating said first and second assemblies from one another; each of said first and second assemblies of frames comprising: a plurality of frames secured together in side by side relation, each frame of each assembly having spaced division elements defining with the perimeter of the frame a plurality of support areas arranged side by side across the width of the frame, the perimeter and division elements of the frames in the respective assemblies being secured together in sealed relation so that the perimeters form outer walls of the battery and the division elements form partitions between adjacent cells of the battery, the frame at one end of each assembly of frames having the perimeter and division elements thereof secured in sealed relation to respective opposite sides of the barrier means, individual masses of active battery material supported in each support area of the frames in each assembly so that each support area forms a plate of the battery, the active battery material in respective areas being selected so that adjacent areas in the same frame form plates of opposite polarity and corresponding areas in adjacent frames of the same assembly form plates of opposite polarity, and an electrolyte porous insulating separator member between the active battery material of opposite polarity in said corresponding areas, the first and second assemblies of frames thereby forming independent multi-cell batteries on opposite sides of the barrier means.
Claim 2
Dependent Claim
263 words
A multi-cell battery comprising: a first assembly of frames, a second assembly of frames, and barrier means interposed between said first and second assemblies of frames for electrically and chemically isolating said first and second assemblies from one another; each of said first and second assemblies of frames comprising: a plurality of frames secured together in side by side relation, each frame of each assembly having spaced division elements defining with the perimeter of the frame a plurality of support areas arranged side by side across the width of the frame, the perimeter and division elements of the frames in the respective assemblies being secured together in sealed relation so that the perimeters form outer walls of the battery and the division elements form partitions between adjacent cells of the battery, the frame at one end of each assembly of frames having the perimeter and division elements thereof secured in sealed relation to respective opposite sides of the barrier means, individual masses of active battery material supported in each support area of the frames in each assembly so that each support area forms a plate of the battery, the active battery material in respective areas being selected so that adjacent areas in the same frame form plates of opposite polarity and corresponding areas in adjacent frames of the same assembly form plates of opposite polarity, and an electrolyte porous insulating separator member between the active battery material of opposite polarity in said corresponding areas, the first and second assemblies of frames thereby forming independent multi-cell batteries on opposite sides of the barrier means.
Claim 3
Dependent Claim
86 words
A multi-cell battery as claimed in claim 1 wherein said barrier means is a barrier frame having the same shape as the frames of the assemblies and portions forming divisions between adjacent support areas, said division portions being secured in sealed relationship to the division portions of the frames of the assemblies disposed on the opposite sides of said barrier frame, each area of the barrier frame formed by the division portions thereof being spanned by a sheet of material formed integral with the barrier frame.
Claim 4
Dependent Claim
47 words
A multi-cell battery as claimed in claim 2 wherein electric connector members extend through alternate division elements of the frames supporting active material, the arrangement of the connector members being such that each two adjacent frames supporting active battery material form a series connected group of cells.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-16 | 1984-06-16 | 1984-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-16 | 1988-06-16 | 1988-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-16 | 1992-06-16 | 1992-12-16 | $7700.00 | Window Closed / Lapsed |