LEAD-ACID ACCUMULATOR, PARTICULARLY FOR AUTOMOBILE VEHICLES.

摘要

The accumulator comprises a vessel or vessel (2) with a plurality of holes (4) that define ventilation ducts for the gases developed in the accumulator. A filter element (90) is arranged in each duct to allow gases to pass through it but preventing the electrolyte from passing through it. The filtering element (90) is constituted by a porous substrate (92) combined with a polytetrafluoride-ethylene membrane (94).