BATTERY SEPARATOR WITH IMPROVED SHOULDERS

摘要

A battery separator (10) for use in enveloping the plates of a flooded cell type lead acid battery. The separator has improved puncture resistance in the shoulder areas provided by a plurality of improved mini-ribs (30) located therein. The mini-ribs have substantially flat upper surfaces (31), and the space between adjacent mini-ribs is sufficiently small to form regions of high puncture resistance in the shoulder areas. This spacing distance is less than about 0.0225 inch (0.6 mm). The separator may also have a plurality of micro-ribs (40) located on the backside (14).