US4223081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite electrode for storage batteries and the like
Assignee: RWE AG
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Filing: 1979-05-17
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Granted: 1980-09-16
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Expires: 1999-05-17
Abstract
Abstract A metal/synthetic-resin composite electrode for a storage battery or the like comprises a perforate metal support which is flanked on both sides by openworks of polyolefin, e.g. partially fluorinated polyolefin, which are welded together within the openings of the support and carry the active material. The polyolefin openworks, together with the active material, are covered in turn with polyester fabric or polyester felt permeable fine porous cover layers.
Inventors
- 👤 Peter Faber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:14
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B32B15/085; B32B15/02; B32B27/00; B32B27/32; B32B27/36; H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/66; B32B2305/00; B32B2305/38; B32B2311/00; B32B2323/00; B32B2323/04; B32B2323/10; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
92 words
A composite electrode for storage batteries and the like, comprising: a metal support provided with a multiplicity of throughgoing openings; respective polyolefin synthetic-resin layers constituted as openwork sheets of screened fabric, net or grid structure flanking said support on opposite sides thereof, said layers being directly fused together through the openings in said support and at points within said openings; an electromechanically active mass received in the openworks of said layers; and respective fine-porous cover layers in the form of polyester fabric or felt overlying and bonded to the respective polyolefin layers.
Claim 2
Dependent Claim
92 words
A composite electrode for storage batteries and the like, comprising: a metal support provided with a multiplicity of throughgoing openings; respective polyolefin synthetic-resin layers constituted as openwork sheets of screened fabric, net or grid structure flanking said support on opposite sides thereof, said layers being directly fused together through the openings in said support and at points within said openings; an electromechanically active mass received in the openworks of said layers; and respective fine-porous cover layers in the form of polyester fabric or felt overlying and bonded to the respective polyolefin layers.
Claim 3
Dependent Claim
20 words
The composite electrode defined in claim 1 wherein the polyolefin layers are formed of low-homologous polyolefin or partially fluorinated polyethylene.
Claim 4
Dependent Claim
18 words
The composite electrode defined in claim 2 wherein the polyolefin layers are formed of polyethylene, polypropylene or polybutylene.
Claim 5
Dependent Claim
30 words
The composite electrode defined in claim 2 wherein said fine-porous cover layers for a fusion seam with one another around at least a portion of the periphery of said support.
Claim 6
Dependent Claim
19 words
The composite electrode defined in claim 2 wherein the polyolefin layers are welded together around edges of said support.
Claim 7
Dependent Claim
16 words
The composite electrode defined in claim 2 wherein the polyolefin layers are screens of polyolefin strands.
Claim 8
Dependent Claim
13 words
The composite electrode defined in claim 2 wherein the polyolefin layers are fabrics.
Claim 9
Dependent Claim
13 words
The composite electrode defined in claim 2 wherein the polyolefin layers are nets.
Claim 10
Dependent Claim
17 words
The composite electrode defined in claim 2 wherein the polyester layers are nonwoven mats of polyester fiber.
Claim 11
Dependent Claim
99 words
A composite electrode for storage batteries and the like, comprising: a metal support provided with a multiplicity of throughgoing openings; respective polyolefin synthetic-resin layers constituted as openwork sheets of screened fabric, net or grid structure flanking said support on opposite sides thereof, said layers being directly fused together through the openings in said support and at points within said openings; an electromechanically active mass received in the openworks of said layers; and respective fine-porous cover layers in the form of polyester fabric or felt overlying and bonded to the respective polyolefin layers, the polyolefin layers being formed of polydifluoroethylene.
Claim 12
Dependent Claim
99 words
A composite electrode for storage batteries and the like, comprising: a metal support provided with a multiplicity of throughgoing openings; respective polyolefin synthetic-resin layers constituted as openwork sheets of screened fabric, net or grid structure flanking said support on opposite sides thereof, said layers being directly fused together through the openings in said support and at points within said openings; an electromechanically active mass received in the openworks of said layers; and respective fine-porous cover layers in the form of polyester fabric or felt overlying and bonded to the respective polyolefin layers, the polyolefin layers being formed of polydifluoroethylene.
Claim 13
Dependent Claim
19 words
The composite electrode defined in claim 10 wherein the polyolefin layers are welded together around edges of said support.
Claim 14
Dependent Claim
16 words
The composite electrode defined in claim 10 wherein the polyolefin layers are screens of polyolefin strands.
Claim 15
Dependent Claim
13 words
The composite electrode defined in claim 10 wherein the polyolefin layers are fabrics.
Claim 16
Dependent Claim
13 words
The composite electrode defined in claim 10 wherein the polyolefin layers are nets.
Claim 17
Dependent Claim
17 words
The composite electrode defined in claim 10 wherein the polyester layers are nonwoven mats of polyester fiber.
References Cited (Backward Citations)
US4161569A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-16 | 1984-03-17 | 1984-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-16 | 1988-03-17 | 1988-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-16 | 1992-03-17 | 1992-09-16 | $7700.00 | Window Closed / Lapsed |