US4110241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing active material for lead batteries
Assignee: Individual
•
Filing: 1977-05-12
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Granted: 1978-08-29
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Expires: 1997-05-12
Abstract
Abstract To obtain the active material of lead batteries one of the initial components, that is, acid-resistant fibres are settled in an electric field on a horizontal continuously moving band, the fibres being oriented square to the band and subsequently the band is covered with lead powder which fills the gaps between the fibres, the thickness of the layer corresponding to the length of the synthetic fibres. Introduced into the obtained mixture is sulphuric acid and water. The method according to the invention has made it possible to improve the strength characteristics of electrodes thereby extending the life of batteries by 25- 30 percent.
Inventors
- 👤 Vladimir G. Pirkulov
- 👤 Mikhail A. Askarov
- 👤 Avtandil V. Dzhashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:55
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M4/56; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
97 words
A method of manufacturing an active material for lead batteries consisting in that a synthetic acid-resistant fibres are uniformly settled in an electric field on a continuously moving horizontal band of a semiconductor material, said fibres being oriented perpendicularly to said moving band; then said moving band is covered with lead powder which fills the gaps between the fibres in a quantity sufficient for creating a layer whose thickness corresponds to the length of said synthetic fibres; the obtained mixture of fibres with lead powder is removed from the band and mixed with sulphuric acid and water.
Claim 2
Independent Claim
97 words
A method of manufacturing an active material for lead batteries consisting in that a synthetic acid-resistant fibres are uniformly settled in an electric field on a continuously moving horizontal band of a semiconductor material, said fibres being oriented perpendicularly to said moving band; then said moving band is covered with lead powder which fills the gaps between the fibres in a quantity sufficient for creating a layer whose thickness corresponds to the length of said synthetic fibres; the obtained mixture of fibres with lead powder is removed from the band and mixed with sulphuric acid and water.
Claim 3
Dependent Claim
29 words
A method of manufacturing an active material for lead batteries according to claim 1 wherein the intensity of the electric field is equal to E = (2-4)·10 5 V/m.
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) | 1981-08-28 | 1982-02-27 | 1982-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-28 | 1986-02-27 | 1986-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-28 | 1990-02-27 | 1990-08-29 | $7700.00 | Window Closed / Lapsed |