Patent ID: 6693408
Filing Date: 2004-02-17
Classification: H01M,Y02E,Y02P,Y02T

Abstract:
An electric accumulator battery, comprising a recipient, the recipient including walls and partitions, the recipient being internally subdivided into cells in which positive and negative toroidal plates are housed, between which a micro-fiberglass separator is arranged in which the electrolyte is embedded, the recipient is closed by means of a lid through which current tap terminals protrude and the lid has openings facing the cells which are closed by means of stoppers incorporating valves for controlling the gas outlet, characterized in that the lid closing the recipient is double and is composed of a lower lid and an upper lid joined together and delimiting an intermediate chamber; whose lower lid is hermetically sealed to the walls and partitions of the recipient, current outlet connections pass through the lower lid in a hermetically sealed manner, and the lower lid has a hole facing each cell, in which the corresponding closing stopper with a gas outlet valve is assembled, each stopper ends in the intermediate chamber and has ventilation openings facing ventilation passages of the recipient; and whose upper lid has openings for passing the current tap terminals, which are joined through connectors to said current outlet connections, the upper lid includes ventilation openings facing the ventilation openings of the lower lid, and one or two holes for the gas outlet; both lids having centering pins or protrusions on their facing surfaces, as well as walls encircling the ventilation openings and permitting the seal between the facing ventilation openings of the two lids.