Patent ID: 6255014
Filing Date: 2001-07-03
Classification: H01M

Abstract:
A battery comprising a battery housing containing a cell cavity for holding a battery cell, an apparatus for venting gases from the battery, the apparatus comprising:a battery housing cover having an upper planar member and a vent wherein the vent is partially defined by a well interconnecting the upper planar member and a well bottom, the well bottom including at least one upper rib protruding from a top surface of the well bottom and at least one lower rib protruding from a lower surface of the well bottom, the vent further including a pipe extending through the well bottom, the pipe defining a venting passage, a bottom portion of the pipe including a vent opening and a baffle positioned to partially interrupt fluid flow through the vent opening, the vent being dimensioned such that when the battery housing cover is sealed to the battery housing the well bottom of the vent is positioned below an uppermost edge of an upper end of the cell cavity.