Chemistry: electrical current producing apparatus – product – and – Cell support for removable cell – Support or holder per se
Patent
1995-11-07
1997-09-09
Willis, Jr., Prince
Chemistry: electrical current producing apparatus, product, and
Cell support for removable cell
Support or holder per se
429 74, 429 81, 429 51, H01M 1004
Patent
active
056654863
DESCRIPTION:
BRIEF SUMMARY
The invention concerns a container for storage batteries specially suitable for short charge time batteries. The application for a Swedish Patent No. 7701184-9 on behalf of the YUASA BATTERY Co Ltd. shows a special device for producing electrolyte storage batteries as far as the rapid charge of said batteries is concerned. This device is characterized in that it includes a plug liable to be connected to the mouth of a cover in order to charge the electrolyte, where the plug comprises an input pipe and an output pipe through which the electrolyte, which prepares the charge for each cell of the battery, respectively flows in and out. The input pipe is longer than the output pipe and the output pipe is so high as to work as liquid level in the cell. The input and output pipes are generally coaxial, one inside the other. This special plug is safely screwed on or fastened to the mouth of each cell where the electrolyte is introduced, and the circulation of the electrolyte occurs in two times, one with low density electrolyte and the other with high density electrolyte.
During the circulation of the electrolyte, said electrolyte cools down outside the battery, so that the heat removal during the battery charging process shortens the time necessary for charging the battery. The circulation and the cooling of the electrolyte meaningfully reduce the time for charging the battery. According to a preceding and less complex technique, the charge of the battery takes place by introducing the electrolyte statically and without circulation. In this case the charge of the battery occurs in a few days instead of a few hours, as with the method just recalled.
The charging process with forced circulation of the electrolyte is, however, not free from drawbacks.
One of the main drawbacks of the charge device just recalled lies in the fact that the input and output pipes of the electrolyte, belonging to the plug, can get closed because of the dirt deposit connected to the circulation of the electrolyte. Therefore, the drawback is that, making use of the same devices over and over again, the circulation of the electrolyte slows down or stops. Besides, the frequent replacement of the plugs involves waste of time and expenses to bear.
The aim of the invention is to get over the drawbacks above highlighted.
The main goal of the invention is to carry out a container shaped in such a way as to fit for the quick circulation of the first-charge electrolyte, so that said circulation can take place as quickly and profitably as possible.
Moreover, the invention is meant to avoid clogs due to repeated utilization of the same devices for charges in different cells.
Another aim to achieve is that the container fitted for the circulation of the electrolyte accomplishes said circulation with the greatest effectiveness.
A final aim is that the container of the invention is cheap and, on the whole, profitable compared to the methods used up to now.
All the above-mentioned goals have been achieved by the container of the invention which comprises: plates dipped in electrolyte and connected to each other so as to make up a positive pole and a negative pole; has at least an electrolyte feed pipe, which is substantially vertical and has one end communicating with an opening made on the cover and the other placed near the bottom of the box, and at least a level pipe of said electrolyte, with one end communicating with an opening made on the cover and the other coinciding with the electrolyte level inside each cell.
To advantage, according to a favourite application of the invention, the electrolyte feed pipe and the level pipe are diametrically opposite to each other, so as to accomplish a turbulent circulation of said electrolyte inside the cell and in this way, therefore, the electrolyte effectively covers all the plates which have to soak in said electrolyte.
Furthermore, the possibility of making up more feed and outlet channels of the electrolyte allows to increase the flow rate of said electrolyte and consequently to reduce the charging time.
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REFERENCES:
patent: 1163991 (1915-12-01), Ford
patent: 2505207 (1950-04-01), Riggs
patent: 4008355 (1977-02-01), Perkams
patent: 4276357 (1981-06-01), Ferrarini
patent: 5472803 (1995-12-01), Flanagan
patent: 5498488 (1996-03-01), Stocchiero
Abstract of Japanese Patent 57-25669, Storage Battery, Akifumi Tanaka, Oct. 2, 1982.
Chaney Carol
Willis Jr. Prince
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