GB561056A - Improvements in or relating to electric secondary batteries of the so-called dry type - Google Patents
Improvements in or relating to electric secondary batteries of the so-called dry typeInfo
- Publication number
- GB561056A GB561056A GB13563/42A GB1356342A GB561056A GB 561056 A GB561056 A GB 561056A GB 13563/42 A GB13563/42 A GB 13563/42A GB 1356342 A GB1356342 A GB 1356342A GB 561056 A GB561056 A GB 561056A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrodes
- porosity
- per cent
- porous
- whole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
561,056. Galvanic batteries. FULLER, L., and SUDLOW, E. W. Sept. 28, 1942, No. 13563: [Class 53] A lead-acid accumulator of the " dry " type, in which all the space in the container which is not occupied by the electrodes is filled with porous separating material. to form a porous block in which the whole of the electrolyte is absorbed, is characterized by the fact that either the porosity factor of the whole block comprising the electrodes and separating material, or the porosity factor of either the positive or negative electrode, or of both electrodes, is at least 50 per cent. The porosity factor is the ratio of the total free space within the mass to the total volume of the mass. By making the electrodes sufficiently porous substantially the whole of the active material may be used efficiently with little more than the theoretical minimum quantity of acid ; the rise in resistance of the battery during discharge is diminished, so improving the voltage characteristic ; the discharge rate may be increased; and " choking " of the active material by sulphate is diminished. The desired porosity may be obtained by mixing a salt with the electrode material which dissolves out when the pasted plates are formed leaving pores. Alternatively, particles of porous filling material may be used and remain in the plates, for example powdered ceramic, 'aluminium oxide or silicate, active carbon black or charcoal, or natural or synthetic fibrous material. Examples of pasting mixtures for negative electrodes containing carbon black, asbestos fibres, or aluminium oxide, and having porosities of from 40 to 60 per cent are given. A pasting mixture for positive electrodes containing asbestos fibre, and having a porosity factor of 50 per cent, and another in which a porosity of 60 to 70 per cent is obtained by the formation of a relatively large amount of sulphate in the material, are also given. The porous separating material may be made as described in Specification 537,377, [Group V], of glass wool consolidated by a mixture of kieselguhr and a binding agent and compressed, the porosity varying between 50 and 80 per cent. The electrodes may be assembled in the accumulator prior to forming them, as described in Specification 550,334. Specifications 432,775, 506,062 and 540,591 are also referred to.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB13563/42A GB561056A (en) | 1942-09-28 | 1942-09-28 | Improvements in or relating to electric secondary batteries of the so-called dry type |
FR932588D FR932588A (en) | 1942-09-28 | 1946-08-22 | Secondary electric battery of the so-called dry lead-acid type |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB13563/42A GB561056A (en) | 1942-09-28 | 1942-09-28 | Improvements in or relating to electric secondary batteries of the so-called dry type |
Publications (1)
Publication Number | Publication Date |
---|---|
GB561056A true GB561056A (en) | 1944-05-03 |
Family
ID=10025214
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13563/42A Expired GB561056A (en) | 1942-09-28 | 1942-09-28 | Improvements in or relating to electric secondary batteries of the so-called dry type |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR932588A (en) |
GB (1) | GB561056A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0602578A1 (en) * | 1992-12-17 | 1994-06-22 | Accumulatorenfabrik Sonnenschein Gmbh | High capacity maintenance-free lead accumulator |
-
1942
- 1942-09-28 GB GB13563/42A patent/GB561056A/en not_active Expired
-
1946
- 1946-08-22 FR FR932588D patent/FR932588A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0602578A1 (en) * | 1992-12-17 | 1994-06-22 | Accumulatorenfabrik Sonnenschein Gmbh | High capacity maintenance-free lead accumulator |
Also Published As
Publication number | Publication date |
---|---|
FR932588A (en) | 1948-03-25 |
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