Patent ID: 11962031
Assignee: XSAMSUNG SDI CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. Ventilation device for a battery, comprising:
a housing configured for being attached to a battery casing in a sealing manner and comprising at least one lateral wall;
a breathable filter extending across and closing a distal end of the at least one lateral wall and configured for separating an interior of the battery casing from a breathing chamber within the housing;
a venting membrane configured for separating the breathing chamber from an exterior environment in a gas tight manner and configured to rupture in response to gas pressure inside the housing reaching a reference pressure or greater; and
a breathing sprout opening directly into the breathing chamber to fluidly connect the breathing chamber and the exterior environment and bypassing the venting membrane,
wherein the breathing chamber is defined by the at least one lateral wall, the breathable filter, and the venting membrane, and
wherein in a venting event, the ruptured venting membrane provides a flow area for a vent gas stream that is at least two times larger than a flow area of the breathing sprout.