Chemistry: electrical current producing apparatus – product – and – Having specified venting – feeding or circulation structure – Venting structure
Patent
1996-06-11
1998-12-08
Skapars, Anthony
Chemistry: electrical current producing apparatus, product, and
Having specified venting, feeding or circulation structure
Venting structure
429 89, 429175, 429185, H01M 204
Patent
active
058466711
DESCRIPTION:
BRIEF SUMMARY
The invention concerns a lid for batteries which can be indifferently used on batteries of the "KAMINA" type or on the so-called "re-combination" type.
The batteries of the "KAMINA" type are batteries realized according to the instructions given in the patent G9101356.9 belonging to the German Company MOLL GMBH. These batteries are used in special environmental contexts, e.g. where it is advisable to prevent the fumes developed during the battery performance from being discharged in the environment wherein the batteries operate. It is for this reason that the batteries of the "KAMINA" type present a lid having in its interior a gas-conveying channel, which setting each one of the battery elements into communication with the others. The channel presents at least one hole on the rim of the battery lid on which a tube is attached which has the task of collecting and exhausting the fumes developed in the interior of the elements during the battery performance or during its recharging. The channel connecting each element is preferably realized in correspondence of the middle line of the alignment of the refilling holes of each element. Each cap inserted in said holes, presents on its cylindrical wall at least one hole for communicating with the conveying channel, thus assuring the connection between adjacent sections of the channel. Therefore, it is easy to understand, that the fumes developed on each element pass through the holes of each cap of the battery element, and, through said holes, they reach the collector channel which then conveys the fumes, such as hydrogen, to the external environment, through one or two tubes connected at the end of said channel. Therefore, any danger of deflagration, because of hydrogen accumulation, or pollution of the environment is avoided. With regard instead to the so-called "re-combination" batteries, these are realized according to working principles which foresee a special separator arranged between two plates in each element. Each of the elements composing the battery is hermetically sealed, so that the fumes developed because of electrochemical reactions are blocked in the interior and used for the chemical reactions operating the regeneration of the battery itself, said fumes re-combining with the ions produced during the electrochemical processes.
With the purpose of avoiding that in the battery or in one or more elements of the same conditions will arise such as to produce gas at high pressure, because of some overheating phenomenon due, for instance to the power output over the allowed limits or other, the battery is supplied, in each battery element, with a one-way valve for gas exhaustion, so that the battery is always protected against the above mentioned phenomenons. In the "re-combination" batteries usually there are no caps for the refill of the electrolyte, since the re-combination does not foresee the refilling of the electrolyte. Therefore, the lid of the "re-combination" batteries presents a seal being hermetical in relation to the container and to its elements, with the only the one-way valves for the exhaust of possible internal overpressures, as already mentioned.
Consequently, the present technique foresees two different lids for the battery containers, one used for the batteries of the "KAMINA" type, foreseeing the exhaust of the fumes into the external environment through the collector tube, the other lid for the batteries of the "re-combination" type, having requirements of hermetic seal and exhaust valves.
SUMMARY OF THE INVENTION.
It is the purpose of the invention is to obtain a lid for batteries realized in a single-molding piece which can be advantageously used both to produce the mentioned batteries of the "KAMINA" type and to produce the "re-combination" batteries.
Therefore the intended purpose is to obtain two lids having different final characteristics beginning from the standard mold itself, the final articles being differentiated by adding other elements in order to make the lids compatible with the two different types of batteries.
REFERENCES:
patent: 2151424 (1939-03-01), Galamb
patent: 4052534 (1977-10-01), Devitt
patent: 4613550 (1986-09-01), Jergl et al.
patent: 5422199 (1995-06-01), Adams et al.
LandOfFree
Lid for batteries does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Lid for batteries, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lid for batteries will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-175397