Battery of storage cells
AssigneeSaft-Societe des Accumulateurs Fixes et de Traction
InventorRoger Lebrun
Life of this patent
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Abstract
The invention relates to semi-open battery of storage cells each likely to evolve a large volume of hydrogen, more particularly during overcharge. A battery according to the invention comprises an intermediate or dummy lid so located with respect to the regular lid of the battery to enable the inflammable gas flow generated in the cells to be isolated from the flow of fluid or gas serving for cooling of the electrical connections of the storage cells and thus avoiding or eliminating all danger of explosion.
Claims19
Battery comprising several storage cells arranged adjacently and side by side in a general casing closed by a main lid having first openings, each storage cell comprising a bleed valve for the gases which it emits and two terminals connected by external electrical connectors to terminals of any adjacent storage cell, said battery comprising means for directing and conveying the gases from the respective cells liable to be emitted via the valves outwardly via said first openings formed in the said lid, said means comprising a dummy lid positioned between the said main lid and the storage cells, said dummy lid being perforated directly above said electrical connectors and also comprising funnels having first ends leading outwardly into the said first openings of the said main lid and having second ends mounted around respective outlets of the valves of said storage cells, and means including second openings in said lid forming a part of an air flow circuit for effecting the cooling of the said electrical connectors, said air flow circuit being separate from the means for directing and conveying said emitted gases.
Battery of the type comprising a plurality of storage cells having bleed valves for gases generated therein and inter-electrical connectors between terminals of cells located in a casing having a removable main lid, such lid having gas escape openings for said gases and other openings for circulating cooling fluid to said connectors and terminals, said battery further comprising means for isolating and directing flow of said generated gases from respective cells outwardly via said first-named openings in a region remote from said connectors and terminals, and independent cooling fluid flow circuit means including said other openings for directing flow of said cooling fluid to said connectors and terminals.
Dependencies are inferred from the claim text.