Patent US4161569A successfully refreshed from Google Patents.
US4161569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite electrode for storage batteries, accumulators and the like
Assignee: RWE AG
•
Filing: 1978-03-10
•
Granted: 1979-07-17
•
Expires: 1998-03-10
Abstract
Abstract A composite electrode for storage batteries and the like comprises a metal current-carrying support provided with a surface array of perforations and covered on opposite sides with perforate synthetic-resin layers of net, screen, fabric or the like. These synthetic-resin layers are fused together at points through the openings of the metal support. The synthetic-resin layers may form retaining pockets for the active mass and the latter may be covered on both sides or one side of the electrode with additional layers of porous synthetic-resin material, preferably a fleece or mat of nonwoven synthetic-resin fibers.
Inventors
- 👤 Peter Faber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:06
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B32B15/09; B32B27/00; B32B27/32; B32B27/36; B32B3/00; B32B3/26; B32B3/266; H; H01; H01M; H01M4/00; H01M4/02; H01M4/14; H01M4/64; H01M4/70; B32B2262/00; B32B2262/02; B32B2262/0276; B32B2305/00; B32B2305/38; B32B2311/00; B32B2311/16; B32B2323/00; B32B2323/10; B32B2367/00; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
73 words
A composite electrode for storage batteries and the like, comprising: a metal support provided with a multiplicity of through-going openings, respective synthetic-resin layers constituted as openwork sheets and flanking said support, said synthetic-resin layers bending toward one another into said openings and being directly fused together through the openings in said support and at points within said openings, an active mass received in the openwork of at least one of said synthetic-resin layers.
Claim 2
Dependent Claim
73 words
A composite electrode for storage batteries and the like, comprising: a metal support provided with a multiplicity of through-going openings, respective synthetic-resin layers constituted as openwork sheets and flanking said support, said synthetic-resin layers bending toward one another into said openings and being directly fused together through the openings in said support and at points within said openings, an active mass received in the openwork of at least one of said synthetic-resin layers.
Claim 3
Dependent Claim
22 words
The composite electrode defined in claim 1, further comprising fine-porous cover layers of synthetic resin overlying and bonded to said synthetic-resin layers.
Claim 4
Dependent Claim
24 words
The composite electrode defined in claim 2 wherein said fine-porous layers form a fusion seam with one another around the periphery of said support.
Claim 5
Dependent Claim
19 words
The composite electrode defined in claim 2 wherein said fine-porous layers are formed as nonwoven mats of polyester fibers.
Claim 6
Dependent Claim
20 words
The composite electrode defined in claim 1 wherein said synthetic-resin layers are welded together around the edges of said support.
Claim 7
Dependent Claim
18 words
The composite electrode defined in claim 1 wherein said synthetic-resin layers are formed as screens from synthetic-resin strands.
Claim 8
Dependent Claim
15 words
The composite electrode defined in claim 1 wherein said synthetic-resin layers are formed as fabrics.
Claim 9
Dependent Claim
16 words
The composite electrode defined in claim 1 wherein said synthetic-resin layers are formed as synthetic-resin nets.
Claim 10
Dependent Claim
15 words
The composite electrode defined in claim 1 wherein said synthetic-resin layers are composed of polypropylene.
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) | 1982-07-16 | 1983-01-15 | 1983-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-16 | 1987-01-15 | 1987-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-16 | 1991-01-15 | 1991-07-17 | $7700.00 | Window Closed / Lapsed |